Bi-now-gay-later 

The temporary bisexual identity of a young, naive homosexual male.

Michael told his boyfriend that he still likes girls, but he's clearly on the bi-now-gay-later plan.

Bi-now-gay-later by Will J. Pa. May 19, 2006

bi now, gay later 

An expression taken from "buy now, pay later." This refers to the (often untrue) assumption that bisexual people are going through a phase and will eventually come out as gay. It is usually considered offensive.

guy: you're gay, right?
me: I'm bi.
guy: bi now, gay later

or

guy: What was she doing with another woman? I thought she had a boyfriend.
girl: she's on the bi now gay later plan.

bi now, gay later by bluepens September 10, 2005

bi now, gay later 

A person who claims to be bi-sexual, but is really gay. This person will realize within a year or two that he or she is not attracted to the opposite sex at all.

So Carly says she's into Chris, but she's totally bi now, gay later.

bi now, gay later by paddle May 4, 2010

bi now, gay later 

When people come out as being Bi, before later revealing that they are actually Gay. Seen by some as easier than coming out.

"Jack told me he was Bi last night."
"Yeah, just the other half now."
"Yep...Bi now, gay later"

bi now, gay later by Mr GGGGGGGGG May 27, 2009