Bull 

A individual who possesses extreme motivation, perseverance, and commitment to his/her goal.

Look at Rudy going after Sabrina at work...that dudes a fucking bull!

Mess with the bull you get the horns pal, Daryl just doesn't give up.

Danny's been grinding all night, that guys a straight up bull!

Bull by TeamDiesel August 2, 2011

bull 

Caribbean slang for having sexual intercourse

"Bob bull that girl already"

bull by Dianne Charlie October 10, 2005

bull 

a name given to a male in which you do not no thier name. Mostly used in the Philadelphia region.

whose that bull in the corner that keeps talking about space?

bull by Brian "the bull" June 29, 2007

bull 

If you are a "train tramp" (homeless person), you call the people who guard the trains "Bulls"

OK, let's hop off here when the train slows down, but don't let those Bulls see ya!!

bull by Linda69 September 28, 2005

bull 

A male cow.

Bull go moo!

bull by udusers1 September 6, 2011

bull 

The male, usually black, who has sex with a married woman

The bull fucked her while her cuckold husband watched

bull by John Pickart September 26, 2006

Bull 

A bull is a person who buys securities in anticipation of selling them later at a higher price

See that guy,? He is buying all the shares
He must be a bull

Bull by RedWhiteAndBlack April 30, 2015