Don't bullshit a bullshitter. 

A warning given when someone tries to talk around someone on a certain subject, but the person is very familiar with the subject matter.

Employer: It seems you tested positive for marijuana.

Employee: I was at a party and people were smoking around me.

Employer: The party must have been in a Mini Cooper with the windows rolled up to have this high of a concentration in your urine. Don't bullshit a bullshitter. Clean yourself up or you're out.

Don't bullshit a bullshitter. by R.J.H December 26, 2009

bellshiner 

1. A person who shines bells
2. A person who shines the head of a penis
3. A complete an utter dick head

"You sir, are one complete an utter bellshiner"

bellshiner by dansirex March 5, 2009

bullshited 

(v.) The act of handing in improvised work that you probably did the night before.

(n.) BS is improvised work with which the writer has no care for.

(v.) Yeah... I bullshited that essay, who cares if I fail.

(n.) This work is absolute BS, did you even care?!

bullshited by Ambassador Salazar June 27, 2008

Bullshivek 

safe american/russian word for Bullshit!

cut the bullshivek out!

Bullshivek by Bradley is a farmer January 24, 2010

Bullshitter 

Some one who just talks the biggest load of crap ever. They just won't fucking shut up!

Paul: Oh yeah i know, i can complete Halo without firing a single bullet on Legendary!!11!!

Mate: Yeah, Yeah, BULLSHIT!

Bullshitter by The Mate May 17, 2005

Bullshitter 

Someone who will claim he drank 2 litres of vodka and was not drunk.
Someone who claims he has many girlfriends who come to his house and sleep with him.
Someone who generally compulsively lies and everyone who speaks to him knows it.
Degenerate of society.

"Hey dude, guess what"
"What?"
"The other night i took on a gang all by myself, each one was down"
"Shutup man, thats bullshit, Your just one big hairy bollock of a Bullshitter."

Bullshitter by MrManc420 October 21, 2009

bullshiteering 

The art of pre-planning and pre-rehearsing a credible lie for the sake of manipulation or deception.

Johnny spoofed the cops at the interrogation, he's a master in the art bullshiteering.

bullshiteering by Robertino October 16, 2005