No Smack Thx Posted in N Best definition No Smack Thx Used when someone is talking shit. Stop talking shit etc. Dante says: I r0xxed j00 at CS Kaine says: No Smack Thx How satisfied are you with the definition? Looking for No Smack Thx meaning? Delighted that you discovered the greatest determine on our web site! Recently this definition was actually observed 13 times.