Penis Cordon Bleu
When one commits a "Penis Cordon Bleu", he has had sex with a very large girl. PCB got its name for the idea that when a man inserts his penis into a fat chick, it is warm, meaty, and cheesy inside.
Man, I was so drunk last night I committed a Penis Cordon Bleu when I banged that 200 lb chick in Tri-Delt.