Frosted Glass

When you come/nut on a girl's/or boy's(take your pick) face while they are wearing glasses.

Jake:"Last night I gave Brittany that frosted glass all over her glasses."
-For guys-
Sam:"I swear I'm gonna get Brad for giving me frosted glass all over my glass."

Frost the glass

When you take a Brad Pitt which leave skid marks and you place a single sheet of toilet paper on on the water to conceal the skiddies

I just took a massive shit and left the handbrake up. Had to frost the glass so the miso wouldn’t crack the shits.