stick out verb4 •To protrude.He stuck out his tongue at me. •To protrude; to extend beyond.His tongue was sticking out.I can fit the pipe in my car, but one end will stick out from the back. •To be prominent, noticeable, or obtrusive.The one red wall really sticks out among all the creamy ones. •To persist until the end; stick it out. formsstuck out · sticking out · sticks out