let's do this 

leroy jenkins shouts "LET'S DO THIS!" and his own name, followed by him charging into a raid with disregard to the carefully laid plans his nerdy raid group came up with

nerdy group leader: can you give me a number crunch real quick?
number cruncher: uh....yeah give me a sec...im coming up with 32.33, uh, repeating of course, percentage of survival
nerdy group leader: well that's a lot better than we usually do...uh...so are we...
leroy jenkins: alrite, times up! LET'S DO THIS! LEROY JENKINS!
nerdy group leader: omigod he just ran in

let's do this by iSTALKforCASH October 9, 2009

let's do this 

Usually said before a fight, or when an event is about to go down. You are wanting to be part of this event.

p1: Dude you called my cat a fucking heeb.
p2: Let's right, you wanna rumble over it aunt jemima?
p3: Fuck yea! Let's do this!

let's do this by kRaZyToM April 29, 2004

let's do this 

Let's do whatever we came to do or are discussing.

"You ready to fuck? Aight, Let's do this."

let's do this by Erica Brown April 25, 2004

let's do this 

Means to do what it is being suggested

Guy: U ready?
Guy 2: Let's do this!

let's do this by S_I_X aka Toine April 28, 2004

let's do this 

Signal to go forth with something.

Bob: Wanna go smoke some reefer?
Cob: Let's do this

let's do this by Chris Buckley April 26, 2004

let's do this 

A phrase which connotates the beginning or initiation of something fun, such as a party, club excursion, bar crawl, or the like.

Three people get into a cab on their way to a party. Prior to getting in, one of them says "Alright, let's do this!"

let's do this by aesthete April 26, 2004

let's do this 

Commonly said by uppity groups of people, but also those ready to fuck the dumb shit and just get down to business

A rival dance group is about to get f'in served. The other team boasts, "Let's do this."

let's do this by Madison April 20, 2004