What does SMO mean?

Many (maybe 60) years ago, there was a small white cartoon character that I believe was called a Smo. Not sure which cartoon the Smo was in, but it might have been "Andy Capp." There are many gaps in my memory, but maybe my clues will lead to an answer.

Other definitions of SMO:

  • Serious Mode On

  • Shut me out

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How to use the term SMO:

  • you're just trying to ( shut me out)

More slang terms:

GL

GL

Good Looking.

ROTFLMAAOBPO

ROTFLMAAOBPO

Rolling On The Floor Laughing My Ass And Other Body Parts Off