when you make an ass out of yourself trying to blame others or call someone out
Swizz - "Hey Pip why did you eat my leftovers from Changs?"

Pip - "You ate it when we got back from the bar last night, quit making asscusations"
by jiggoswizzle July 20, 2011
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Using your need for a bathroom as an excuse for not doing something.
"I thought we were going to look at that new car."
"Sorry, bro, I really have to get home and use the bathroom."
"That's a lame asscuse and you know it!"
by Mattalicious October 5, 2007
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