Top definition
A nerdy phrase and a spin on the old saying airhead, used as an insult or a slight tease at someone's stupidity, and potentially at someone's short fuse as Hydrogen is a key element in the notorious Hydrogen bomb. This insult references the first element on the Periodic Table of Elements, Hydrogen (H).
Person 1: Damn, I failed my test on Nomenclature
Person 2: You're such a Hydrogen Head
Nothing:
Person 1: *rages*
Person 2: You need to cool off you Hydrogen Head
Person 2: You're such a Hydrogen Head
Nothing:
Person 1: *rages*
Person 2: You need to cool off you Hydrogen Head
by Wheatboi March 09, 2019