A little hitler is a self-important tosspot
who thinks he's in charge. Someone who makes up arbitrary and/or self-serving rules and has a tantrum if they aren't obeyed. They tend to have a park-keeper/traffic-warden mentality; rules are Law and rules come first. They can't handle people who threaten their authority.
Wayne's running a tournament..
Wayne: You didn't spell the name right, Jim. You're out.
Baz: That's unfair, Wayne. You know what he meant.
Wayne: You're out too!
Baz: Ya stupid little hitler.
Little Hitler is a shaving and trimming short of a women's pubic area.This leaves a small short haired patch of hair that looks like a mustache. Although most men prefer women with shaved pussy, the little hitler is a second best.
Check out the Little Hitler on that Babe!!
the european version of the dirty sanchez
the little hitler is when you stick your finger up a womans bum, pull it out then draw a moustache over her upper lip
when someones sleeping a person sticks their finger in thier ass and wipes poop on their upper lip in the form of hitlers mustache
craig woke up with a little hitler