A physical act of intimacy between a romantic couple done in the view of others. Often shortened to the abbreviation "PDA." I really wish you didn't have such a hang-up over public displays of affection—no one cares if we have a quick kiss out in the open! When we go out, my girlfriend is always trying to hold my hand or kiss me, even though she knows that any public display of affection makes me uncomfortable. I don't mind PDAs in general, but teenagers take it way too far.