When a person has a log of stool in their anal cavity and another person shoves their penis into the anus. When pulling their penis out the stool is then stick to the tip of the penis giving them a dirty spear tip

A way to talk about man with an STD, it refers to the mushroom tip in the dick

Referring to the moment when a man is having vaginal intercourses with a woman and he accidently wrong holes her and when upon his penis is removed there is found to be any amount of fecal matter on the head.