1 definition by fgirlfriend

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 23, 2009
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