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to take a crap or shit!
'Hey, don't go in the bathroom just yet. wait for me to drop off the cosby's.'

'say hi to theo for me!'
by JT October 04, 2004
the act of droping a deuce, laying a load, paying the pooopsmith, or otherwise depositing fecal matter.
Hold on dude, i gotta drop off the cosbys
by Jon Solari April 29, 2003