RILF is an acronym for, "Rock I'd like to fuck." Similar to other terms such as MILF and DILF.
"Hey, did you see that RILF?"
"Yeah! It was rocking for sure."
joyce: omg did you go to talmud class yesterday? that rabbi was such a rilf.
joyce’s cousin: i saw! he’s sexy.
Enby, version of a DILF or MILF
"Man, Jill Soloway is a total RILF."
"What the fuck is a 'RILF'?"
Rilf is a Randori you'd like to bang.
Damn that Rilf gonna make me act up.