Doing it live

Used for a situation where you have not prepared at all, or are not planning on preparing.

Cameron: Nick, did you study for the science test?
Nick: Nope, I'm doing it live

Diddly-do

A woman's vagina

Wow, Rachel's diddly-do is a freakin bush! When was the last time she shaved?

Doing a Kendall

When one acts like Jack Kendall by vomiting a lot after drinking one Smirnoff ice and a spending the rest of the night with his head down the toilet.

James: "Have you seen Mike?"
Benny: "Nah man, he's doing a Kendall"
James: "What a cunt!"

Steve: "That party was off the fucking chain last night!"
Jarad: "I know man, I drank so much I nearly ended up doing a Kendall!"

fair do's

Informal, often used in UK. Something you say when something is reasonable, similar to fair enough.

"Sup"
"Nothing much, you?"
"Vibin"
"Fair do's"

(Doctor Who)
Wilfred: You know, I don't understand half the things you say these days.
Donna: Nor me.
Wilfred: Fair do's. You've had a funny old time of it lately.

Doing the Least

The oposite of Doing the Most. When someone has given up and isn't even trying at all.

Girl 1:Why is the bartender wearing yoga pants and no makeup?
Girl 2: She's doing the least.

Do-Flan

Where you decide that yourself and ya brah are pulling out da flannys for a special occasion. (Flannelette shirts)

Ay brah, do-flannin tonight?
Brah: yeh fam

do it around

To do "it" to the fullest capacity.
To fuck with intensity
To handle business

Are you ready?
"Fuck yea, I'm going to do it around!"