Jenno: Aye Bart, knock knock?
Bartholomew: I don't have time for you, botard.
S: I'm cool
R: No you're a botard.
Alcohol is usually contributing factor from being re tarded to being bo tarded.
"Yeah man, what a fricken bo tard"
"The troop surge in Iraq is bo tarded."
"Word, Bush is a bo tard."