A variant of the noun form of dude. Oft-used by those who desire a creative way to address any given dude, and those who aren't into the whole brevity thing.
Duderino, a noun, is the gender neutral term for dude/dudette, and is often used alongside both, when addressing a crowd. It is also used as a standalone word when
1) addressing multiple people, of different genders,
2) addressing someone whose gender you do not yet know,
1) "Good morning dudes, dudettes, and duderinos, and welcome to the 37th annual Forensic Sciences Convention!"
2)"Listen, my duderino, it's just a game. Chill out."
3)"So Sam, if you're non binary, is it okay if I call you 'duderino'?"
One of the preferred alternatives to "The Dude" if you're not into that whole brevity thing. Known to be a laid back, often lazy, pot smoker. Other alternatives are His Dudeness or Duder.
Description of a forum moderator who lets the power go to his head. This person was most likely picked on in school so he seeks revenge by using his mod powers to harass members with greater intelligence and wit. An El Duderino is very thin-skinned and can't handle any criticism what-so-ever.
Dammit, I got banned from my favorite forum last night! All I did was state an opinion that the mod disagreed with. I can't stand that El Duderino!