Billy Up 

To go all out, to give it your all. To be steadfast and unrelenting.

I had to billy up on that toilet earlier; damn near blew out my asshole!

Billy Up by Tarvinator2006 June 25, 2010

All Billy'd Up

Hurtin'. Like Billy McGurtin. One might be described as All Billy'd Up when really drunk and closey-eyed. Also can be used to describe a bad hang-over.

Damon: blah blah schniggity

Neil: Yo - you are All Billy'd Up

Damon: Naw Im not

Neil: Dude, look at yourself, you're a closey-eyed-freak

All Billy'd Up by AndAnotherOne August 25, 2008

SHUT UP BILLY 

This is a phrase that originated from Jacksepticeye. During his gameplay of Happy he uses it to describe a young boy. He associates Billy with all that is evil.

SHUT UP BILLY!!

-Jacksepticeye

SHUT UP BILLY by definemememan September 20, 2018

go belly up 

go into bankruptcy

despite her best efforts, the small business was doomed to go belly up.

go belly up by Joshua LS July 9, 2015

bill up

To roll a joint.

Do you want to bill up inside before we go out to smoke?

bill up by high as a kite April 20, 2004

belly up 

Dead. This comes from how fish float up to the surface "belly up" when they die

one of my goldfish went belly up last night, now I have to flush it.

belly up by butterfly on the wall January 13, 2010

bill up

(bill-up) to roll/smoke some kush, also said "ball up" used by smokers threw out T-dot.

"yo hommie I just coped a pack of backwoods and a Q lets bill up!"

"Im so down broski link me when your at my block"

bill up by peshyMcDilla March 10, 2013