Extremely small penis caused by excessive fat in the pubic/groin area. Penis can shrink back into the scrotum and totally disappear, like a turtle's head.
Since I've put on all this weight I've developed a turtle's head dick! Every time I look down at it the head sucks back into my scotum. Poof! Out of sight!
Tom ate the last of the fuck'n cheese again, and he hasn't been to the store in over a month, that dick head!
Girl: Are you still dating Simon?
Another Girl: What the fuck! I thought he was cool at first, but that asswipe stood me up twice in a row and never called again!
Girl: What a dick head!