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
(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
To only have one and a half testicales
Mr Mallinson has one and a half
by hipmo August 06, 2007