(1) The impact of the blow knocked Jack off balance.

(2) He jacked off before I noticed it.

(3) Today, I heard my daughter scream at my son through the bathroom door "Are you jacking off in there or somethellong?"

(4) Today, I heard my daughter scream at my son through the bathroom door Are you jacking off in there or something?

(5) Did you get caught by your parents when you were jacking off?