man1: dood i w1sh i culd b 0n atk 0f t3h sh0wz  man2: !?
"a geological term dating back to the middle ages meaning "what the fuck?" at an end to a phrase or sentence
"man1: dood i w1sh i culd b 0n atk 0f t3h sh0wz  man2: !?" What is the definition of "!?"?