to fuck up or to be one who constantly bungles their responsibilities and makes life harder for others
"Man Joe, you really cozzied that sale yesterday by sleeping with the clients 15 year old daughter!"
1. A person who is blinded by love to the extent of not knowing that a woman is just gold-digging you and fucking some other dude behind your back.
2. see butter fangs
Yo, Johnny's wife is such a cock leech! He doesn't even know what she is doing, the poor cozzi.