Top definition
an individual male that upon first glance is not definable as either gay or straight.
rachel "that guy is hot- do you think he's straight?"

nicole"nah, he's gay...well he COULD be straight. he's on the cusp. he's a cusper!"
by skittles from the pen April 29, 2011
Get the mug
Get a cusper mug for your boyfriend Bob.
buy the domain for your pet vlog