a B-allsack is a variation of the word ballsack. virtually having no meaning but whatever you want it to be. Other uses are "Blue allsack, bigass bus sack, B L smallsack. B L tallsack, Biggie Smallsack, Bearenstein Ballsacks, Humpty Dumpty Sat on the wallsack, etc. Asking someone if they would like a Belgium Wallsack.

B-allsack is a name you say to someone who use basically mwaning, wtf dude, your gay, etc. the tone really emphasizes the meaning.
did you see that B L tallsack riding in the blue allsack? what B-Allsack.
by Travis3762376423967423 March 02, 2009

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1. Something that will someday be completely useless.

2. Used to put someone down.

3. Used in place of the word 'fuck' or 'damn', etc.
1. One day scientists will create artificial semen for makin babies.

2. "Brad is such a ballsack for takin my ciggs."

3. "BALLSACK!"
by A. Vagina August 05, 2008

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To perform extremely well in a particular endeavor
"Wow, we just ballsacked the shit out of that"
"We came, we saw, we ballsacked."
by BBTK November 05, 2007

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to be trapped in an unwanted inescapable conversation at a party
Named after a gentleman (Tomasack) famous for doing this
"I wanted to see Bill, but that girl was totally ballsacking me in the kitchen about her childhood."
by Stephen C. James January 01, 2005

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The side of your scrum owned by 1 ball.
She pinched my left balls ack!
by Dennis S March 19, 2011

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1. A part of the male genetalia that houses the testicles
2.a term used to describe large or unexpected amounts of things
1. Gross i just saw that guys ballsack
2. I wish I had ballsack dollars or Person 1:Dude, you should buy that...
Person 2:Are you kidding that costs ballsack dollars
by Andy V August 01, 2005

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1. A high school football player who expresses no form of caution.

2. A person who thinks he's a pimp.

3. A male who walks very awkwardly, usually sticking his chest out to exemplify his manliness.
1. Ballsack threw another party and got in trouble.

2. That Ballsack is with a different girl every week.

3. There's Ballsack walking like a Gorilla again.
by DrDeath May 14, 2005

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