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The protagonist for the manga/anime One punch man.

The overpowered bald superhero who defeats enemies with no effort.
Guy 1: did you watch One punch man last night?
Guy 2: Yeah! Saitama kicked ass!
by Awesomeszt March 24, 2016
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3
A bald egg / superhero from a anime show called One Punch Man. Saitama can one punch anything
Guy 1: Saitama kicked butt
Guy 2: Yeah he really kicked thedogthatgoesmeow butt
via giphy
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4
A person who can kill and/or knock you out with one hit.
Saitama killed that monster with a punch.
by utopiarealized February 11, 2019
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Just a guy who's a hero for fun.
Guy 1: Who the hell is Saitama?
Guy 2: Just a guy who's a hero for fun.
by hoykaibiganko October 06, 2019
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