404:  (adjective) Clueless or naive.

411:  (noun) Information.

bag on:  (verb) 1. To tease.  2. To nag or complain.

check it out:  (phrase) Pay attention.

clueless:  (adjective) Unaware; naive; lacking knowledge.

cool:  (adjective) 1. Calm.  2. Fine, acceptable.  3. Neat; exciting; interesting; very good.

da bomb: (adjective) Great; awesome; extremely cool.

dig it: (phrase) 1. Do you understand?  2. A command to understand or pay attention.

dipstick: (noun) A stupid person.

dis: (pronoun and adjective) This.

dog:  1.(verb) To criticize sharply.   2.(verb) To act like a jerk.   3.(verb) To tease or put
down.   4.(verb)  To fail to keep an appointment or date.  5.(verb)  To lie or cheat. 6.(noun) A
man who uses women.   7.(noun)  An unattractive person.  8.(noun)  A close friend.  9.(noun)
Foot.

drop: (verb) To give or tell.

drop knowledge: (phrase) To share information or experience; to pass the bone.

dude:  1.(noun) Person, especially male.  2.(interjection) A greeting or salutation.
3.(interjection) An indication of surprise.

FAQs:  (noun phrase) Frequently asked questions.

For real(s)?:  1. (adjective) True.  2. (interjection) Is it true?

g:  (noun)  1.  A person; often used to replace someone's name.   2.  A friend or acquaintance.

get outta here:  (sentence) You must be kidding!

hang out:  1.(verb) To relax.  2.(verb) To gather; to be at or with.  3.(noun) A place to meet
or get together.

Hello!?:  (interjection) 1. Are you there? I'm trying to get your attention.  2. Are you awake?
3. Are you stupid?

hep cat:  (noun) Someone who's hip, aware, knowledgeable, in tune with the times.

hip:  (adjective) 1. In style.  2. Knowledgeable.

jam:  (verb) To leave; to go.

jive:  (noun) Words; jokes; language.

k:  (noun) Money.

like:  (interjection) Completely, totally; an interjection used for emphasis.

no stress:   (phrase) Don't worry.

old skool:  (adjective) Over five years old; not hip.

pancake steps:  (noun) The steps outside of Carl's Jr. on the Cal Poly Pomona campus.

pass the bone:  (phrase) To share your knowledge and experience; to drop knowledge.

phat:  (adjective) 1. Cool; very good.  2. Attractive or nice.  3. Large; huge.  4. Big; high;
especially used as a term by skateboarders, rollerbladers or snowboarders to describe a jump.
5. Someone who is respected, looked up to.

rag: (verb) 1. To tease, put down, criticize. 2. To nag or complain.

rap:  1.(verb) To talk.  2.(noun) Talk, statement.  3.(noun) A kind of music sometimes called
hip-hop characterized by lyrical talking.

rents: (noun) Parents.

ride: 1.(noun) Mode of transportation; car. 2.(verb) To go, usually by car.

school:  (verb) 1. To teach a lesson to.  2. To win or do something decisively better than
someone else.

tired:  (adjective) Old, repeated, overused. Definitely not hip!
 
totally:  (adverb) Very; very much.

trip:  1.(noun) Something that is unusual or strange.  2.(adjective & verb)  To overreact.
3.(adjective & verb)  To act out of character.   4.(adjective & verb)  Getting very upset; raging.
5.(adjective & verb)  To act in disagreement.  6.(adjective & verb)  To be overwhelmed.
7.(adjective & verb)  To be not making sense.   8.(adjective & verb)  To act crazy or
surprised.  9. (adjective & verb)  To exhibit the characteristics of being intoxicated on drugs or
alcohol.

turkey:  (noun) Someone who is stupid or silly.

way:  1.(adverb) Very; too much.  2.(interjection) Yes; positive affirmation to the statement
"no way."

what's up: (greeting) Hi. What's new or happening?

yo:  1.(interjection)  Hey.   2.  (greeting)  Hi; what's up.