S1U1B3T1W4E1E1T1I1N1G2
17 points
SUBTWEETING is validvalid
the act of subtweeting [n SUBTWEETINGS] / SUBTWEET, to tweet about without referring to by name [v]
SUBTWEET, (on the Twitter application) to post a message about (another user), usually negative in its content, but not explicitly naming him or her [v]