peef theif Share definition Flag Noun. A person who steals peefs by giving blowjobs. Otherwise known as a slut. 1. That peef theif gave me some great head last night. 2. your moms a peef theif. peef theif by Brian F. & Mike C. February 12, 2008 0 0 Get merch Get the peef theif mug. Buy Now — $32.95 See more merch