Babies suck on binkys, aka pacifiers, and boobs! Call your friend a binky cause they suck on tits. B-(boob)- inky
Person A: “Bro did you here David is a certified binky?”
Person B: “No what’s that?”
Person A: “He sucked on his girlfriend Sarah’s tits last night.”
Person B: “BROS A FUCKING BINKY”