Phrs. Sexually promiscuous, with the implication that the person cannot control their sexual appetite, having animal urges. Applied to males. E.g."Did you see Tim oggling that woman's breasts? He was all over her like a dog with two dicks."
LIKE A DOG WITH TWO DICKS
Meaning of LIKE A DOG WITH TWO DICKS in English
Slang English vocab. Английский сленговый словарь. 2012