When a woman sits on your face for so long that the pussy juice begins to harden on your face and you are able to peel it off.
Matt: âbro whatâs on your face.â Brendan: âI just got done hanging out with Anna and she sat on my face for so long that I got a Cosmic Rust Face Mask!â Matt: âbro thatâs awesome, Iâve always wanted one!â