a female version of a cockblocker. prevents her female friends from getting laid, hooking up, or any action at all. They pride themselves on helping their friends make the right decision, but their friends usually don't appreciate getting cockswatted.
Kay: what do you think about will? Caroline: he's cute. why? Kay: well we're gonna hookup. Caroline: what? omfg don't do it! no! Kay: okayy i won't.... cockswatter! (She then hooks up with the boy, ignoring her friend's useless cockswatting.)
1)a male who enjoys slapping objects with his cock.
2)a person who enjoys slapping mens'/boys' cocks.
3--slang)a malehomosexual.
1)That cockslapper broke the TV last week by hitting it with his dong after the Giants lost!
2)That dominatrix is a real cockslapper; she did it to Random Guy two days ago.
3)What a cockslapper, I can't believe he likes men.