It is when you leave the bed during sex to get a doughnut.
"Fuck me harder baby!"
"I'll be right back I need a doughnut"
"Oh, no don't pull a billiam on me now I was about to cum"
by Joerin August 9, 2004
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When you're full name is Bill, and people ask what your "full" name is and you say Billiam (cause William's kinda weird if your full name is Bill).
Guy 1: I have a question Bill?
Bill: yeah?
Guy 1: Is your full name William?
Bill: Uh no it's uh... Billiam, yeah.
Guy: ah nice to know :D
by deep fried potato November 28, 2017
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The baddest, coolest, most desirable of anything or anyone. Also numerically it is more than anyone else can dream of having.
Dude 1 Who is that bad mf’er over there?

Dude 2 That’s Billiam, “if you don’t knownow you know
Dude 1. I wish I could be him
Dude 2. I know, he has a spaceship

Example 2
Dude 1. How much money do you think the earth is worth?

Dude 2. Probably half a Billiam dollars!
by Stankbait August 24, 2022
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billiam is a shorter name for william
Fundo got smacked in the face by billiam for calling him william.
by authoor@gmail.com July 8, 2006
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Billiam a Sexy Canadian from Toronto
Oh Hey it's Billiam, that sexy beast
by ChefMafia October 3, 2018
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A retarded version of William. Bill + William = Billiam.
Me: Ayo Billiam!
William: Don't call me Billiam I'm not retarded.
Me: Ok Billiam.
by themuthafuckingjunbug July 23, 2018
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Misheard "William", usually by white people who are bad at understanding accents.
White person: "Did he just call you Billiam?"
William: No, dumbass.
by Hertz van Rentaal August 2, 2017
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