stuck up adjective2 •Jammed; stuck and unable to move.The type of battery and the battery power level may cause the lens to be stuck up.We were stuck up here for three hours!. •Snobbish, conceited; believing oneself to be better than others, usually because of abundant success; haughty, arrogant or egotistical.The rich people in that neighborhood were stuck up and not friendly at all. formsmore stuck up · more stuck-up · most stuck up · most stuck-up