Top definition
A person who won't admit to being salty or angry at every situation. Possibly plays Mario in Smash Bros.
Dan: What was with that guy's outburst at the bar earlier today?

George: I'm not sure, but it seems to be he was being a salty sem.
by Expandobrando April 26, 2017
Get the mug
Get a salty sem mug for your buddy Helena.