According to the actions of President Bush, a fourth
grader is someone who can replace Bush if he successfully gets assassinated by a pretzel.
Although this definition
gives too much
credit to Bush, it will suffice.
see 4th grader
4th grade Teacher: Okay, class what comes after W?
fourth grader: X?
4th grade teacher: Correct Billy.
W. Bush: X is for oil!
4th grade teacher: -silence-