A male pushover-type who consistently bows down to females. When the Sad Puppy finally gets involved in a relationship, he usually gets dumped in weeks or months, not years. Rarely the initiator of a breakup.
My Ex-boyfriend really loved me but he was such a sad puppy I couldn't stand him after a while. Now I'm with a real asshole and things couldn't be better.
it is when a girl has a very loose vagina.
damn brittany is a sad puppy.