Top Definition
a man's momentary regression back to a childish nature whereby he purposely goes out of his way to piss people the fuck off (ex. if hes having a bad day, then everyone else has to also)... like a little boy
person 1: "frank's been pissing everyone off all day just because hes in a shitty mood."
person 2: "oh, hes got the little boy syndrome."
by faancyface December 24, 2014
When a little boy hits puberty and ejaculates for the first time. His expression is a little something like this: 0.o
Jesse: I think my son had little boy syndrome today!
James: Why is that Jesse?
Jesse: he looked a little something like this 0.o
by Pwned XP June 01, 2010
Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.