When a man is so henpecked by the females in his household that he can only take a pee sitting down, just like a female does.
Taken from the Jack Nicholson movie "About Schmidt," in which he plays a widower who continues with this habit long after his wife died.
"Whoops, the apartment managers are coming over today to inspect the place, and I've just cleaned the john......guess I'll have to try taking a Schmidt."