Cockblocker

A cockblocker is the often stigmatizing label given to an individual who, under social norms, is charged with and found guilty of one or more of the following acts (the range of acts is not limited to those mentioned herein): 1) She/He interferes when two people are flirting. 2) She/He interferes when two people are being intimate by way of kissing, dancing, or cuddling 3) She/He interferes while two people are engaging in genital intimacy, foreplay, or sexual intercourse 4) She/He interferes in any of the above acts that involve more than two people. Normally a cock blocker is only labeled such when she/he interferes with the prospect of sexual intercourse, but since any of the above can lead to sexual intercourse, we can expand our definition.