Top definition
a man seeing that someone he knows might be getting it on with a nice looking lady, waits for him to head to the toilet or the bar and then swoops in to take that lady for his own.
i saw you with a really hot girl last night...

yeah man, she was with ryan before, massive jelmerception...
by FarOutDadio November 21, 2009
Get the mug
Get a jelmerception mug for your fish Julia.