pakboi Share definition Flag Pakboi (Filipino slang) from the English words Fuck Boy, is the worst kind of guy. A male who is into strictly sexual relationships; he will lead a girl on and let her down. Sino 'yang kasama mo? Mukhang pakboi!Who are you with? He looks like a fuck boy! pakboi by Selyse August 26, 2017 0 0 Get merch Get the pakboi mug. Buy Now — $32.95 See more merch