1994 FAQ: Symbols & Abbrev. in news.newusers.questions (Usenet newsgroup) 15 July SMH, shaking my head.
2008 @LyssaHoney 27 Feb. in twitter.com (O.E.D. Archive) Wow I thought today was thursday! Smh.
2014 (Nexis) 11 May b8 SMH that Grammy tried to send me a friend request.