A dolt. Someone who ISN'T smarter than a Fifth Grader.
Man, Louis is such a 4th grader. He couldn't even remember his own birthdate.
by Lovekraft November 25, 2008
referring to the show "Are You Smarter than a Fifth Grader." Someone who is a dolt.
Man Juan is a 4th Grader. He couldn't even remember his own birthday!
by Lovekraft November 27, 2008
According to the actions of President Bush, a 4th grader is someone who can run our country.

This definition gives too much credit to Bush but it will suffice.

Also see fourth grader.
4th grade Teacher: Okay, class what comes after W?
4th grader: X?
4th grade teacher: Correct Billy.
George W. Bush: X is for oil!
4th grade teacher: -silence-
by PouPouPouPou January 15, 2006
Someone who probably plays fortnite has an xbot and has searched up "naked grills" and never shuts up.
Zack:bruh that kid never shut up

Joe: wow what a 4th grader
by Theepicbruh October 17, 2019
Ive only heard this being used a few times but im just doing this anyway.

Companies becoming gay for one mouth then going back to normal the second the months over.
The term "less gay then a emo 4th grader" is comparing companies to a 4th grader who says they are gay but actually arent. (i offended at least one person with that)
Guy 1: "did you hear how they took down the pride flags overnight after pride month"
Guy 2: "man they less gay then an emo 4th grader!"
by Just your average dude October 22, 2022