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3.
To only have one and a half testicales

hipmo hehe
Mr Mallinson has one and a half
by hipmo August 06, 2007
 
1.
To shit and piss your pants.
"Sorry your honor I took a one and a half on the elevator. That's why we're late I sh*t and pissed my pants."
by ShutupimaShark January 07, 2013
 
2.
(verb) to make out with someone in an intimate manner, such that you seem to occupy the space of one and a half persons
"Dave and I totally one-and-a-halfed on that chair last night!"
by UDallasFemme October 09, 2011