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The act of making up an excuse, such as babysitting, to get out of doing something else.
Me: Hey Katie, do you want to come hangout?

Katie: Ummmm no I can't. I have to uhhh, babysit my sister.

Me: Maaan, you ain't babysitting, you're bullsitting!!!
by valvenus November 23, 2011
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Saying bullshit in a very static way (i.e. from a chair)
Random Woman - Are you still bull-sitting there... can u please wake up and come with me to the shop?

Random man - yea wateva....
by miss. take February 05, 2010
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