Pink Triangle.

There's a line in Weezer's "Pink Triangle" that goes "might have smoked a few in my time / never thought it was a crime." Most people I've talked to assume he is referring to marijuana.

But given the subject matter of the song, my theory is that Rivers is referring to cock. He's admitting to having had homosexual encounters in the past as a way of convincing a lesbian to "be a little straight."