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5.
contraction: stupid + idiot
Honey, that`s not where the salad dressing goes in the refrigerator!
You`re such a stupidiot.
by xavier reivax November 06, 2009
 
1.
A mix of stupid and idiot.(noun)

Variation: Stupidiotical (adjective.)
You're a stupidiot!
Stupidiotical people suck!
by Sabre October 28, 2004
 
2.
a mixture of stupid and idiot. for those times when it's just easier to roll it up into one word.
fred durst is a stupidiot
by veekie February 06, 2004
 
3.
Someone who is a stupid idiot.
I cant believe him. He is such a stupidiot.

Heidi: You are so conceited!

Jay: What does that mean?

Heidi: OMG! You are such a stupidiot!
by Babigurl Blucker September 03, 2007
 
4.
A fusion of the words stupid and idiot. Used to describe a person of extreme imcompetence. Or a stupid idiot.
George Bush: I just launched 50 million nuclear bombs at Iraq.
Dick Cheney: What, you stupidiot you aren't even president anymore!

Guy1: Hey I hooked up with this hot chich named Bob.
Guy2: BOB?!?!? That's a boy's name you stupidiot, and my Bob is my brother!!!

by Stupipdiot April 17, 2009
 
6.
a mixture of a stupid person and an idiot
don't be a stupidiot!

look it's a stupidiot
by stupidiot March 01, 2007
 
7.
Used when someone has done something so dumb, you can't decide whether to call them plain stupid or a darn idiot (hence the combination of the two into stupidiot). This insult is also a time saver, allowing you to give two insults for the price of one.
Marc: "I can't believe you got arrested for trying to sell weed to a cop! Jill, you are the biggest stupidiot I have ever seen!"

Lucy: "I can't believe Daren misspelled the word grapes on his project. He left off the E!"
Greg: "I know, what a stupidiot!"
by gawk June 13, 2009