See also: smdh English Etymology From SMH with modifier damn. Phrase SMDH (Internet slang) Initialism of shaking my damn head (used to show that one does not approve of something or cannot believe it, in either a sarcastic or more emphatic form than SMH). Anagrams DMHs, HDMS, SDMH, HMDS, MSDH, DM;HS, HMDsWikiwand - on Seamless Wikipedia browsing. On steroids.Remove ads