The act of leaving someone's friend request on Facebook unanswered: i.e. neither accepting nor rejecting.

(noun) A successful type of theft which results in an acceptable, impressive and rewarding payday for the protagonist.

The act of holding in faecal matter beyond it's natural release point, to the point where it is bubbling to get out. At this point the dirty payload is then released onto the waiting stomach of a loved one in an act of tarmacking (see 'tarmacking')