Top definition
A boy that thinks and treats you as his girlfriend, but you are not. You let him buy you dinner and movies anyways.
" Are you and that boy dating?"
" No, hes just my fake boyfriend"
by Stephanie and Alison July 05, 2008
Happy St. Patties Day!
When you and a boy are hooking up, but it's a complete secret and he sometimes acts like you're not.
"how long have you and him been hooking up?"
"like... a month"
"oh are you guys together?"
"no he's just my fake boyfriend"


"why does he treat you like that if you guys are hooking up?"
"because he's my fake boyfriend"
by fgirlfriend April 22, 2009
Happy St. Patties Day!