Upside Down Rock On Sign Edit Meaning

1.

The middle finger of Metal heads.

The rock on sign upside down. Given as a rude gesture to mostly people wearing Slipknot shirts, and shirts of other gay Metal bands. It is basically saying the opposite of "Rock on".

I saw this kid at the mall in a Slipknot shirt, and I gave him the upside down rock on sign. Then he ran away and cried.

See upside, down, rock, on, sign