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1.
1. To bullshit, especially when one does not know anything about what one is speaking about.

2. To make a "brain fart," as it were; i.e. forgetting momentarily that Abe Lincoln was assassinated and thinking he died of a bone disease.
1. "Did you know that 83% of Americans can't find the U.S. on a world map?"
"Dude, you're totally poopin' your shirt!"

2. "He's not from England, he's from Britain!"
"You always poop your shirt like that, asshole!"
by Amelia Martin September 02, 2007