When you either accidentally or deliberately to be
ironic type "smile" with your right hand on the wrong
keys.
Originated in text-
based MUDs in the 90s where users would type commands into the console to "emote."
Example 1.
Person 1: I love you so much, dearest.
Person 2: Sweet! *SNUKE*
Example 2.
"say I just
slayed that level 50 dragon!"
You say: I just slayed that level 50 dragon!
"Hrothgar: snuke"
Hrothgar tries to
type "smile" but his hands are on the wrong
keys!