1. in. to stick or adhere?[to someone or something] tightly. (Usually objectionable.) That oily stuff sticks like shit to a shovel.
2. in. to be very dependent on someone; to follow someone around. (Often with an indirect object. Usually objectionable.) She’s so dependent. She clings to him like shit to a shovel. He hates her, but he sticks like shit to a shovel.