A half handjob, half bagtag. Usually performed under hammed circumstances when the woman's decision making is poor. Unfortunatly, when told to go faster the woman speeds up and smashes your nuts to peices. Also known as the HJ(handjob) Hodge.
"Man, she was giving me a handjob last night but her dumbass friend told her to go faster, and it turned into a sledgehammer."