To get your ass handed to you or to take a beating. Can be used to describe a fight, a hard day at work (especially in the service industry) or lose an argument badly
"I haven't gotten my dick kicked in that hard in a long time"
"I shouldn't have picked a fight with that dude, he really kicked my dick in" ETC
While satisfying yourself and watching Gun related Youtube channels after knocking down your second 12er of the day and you need that extra little you something to help you finish, "Just put a thumb in it"
Man, i thought i'd never be able to finish, but i took Scott's advice and gave my self the ol' Kentucky plug, and now have to clean the ceiling