1. Someone who is a stupid idiot
2. A very stupid person
3. Generally, someone idiotic
Girl: Becky, your boyfriend is a stupidiot, he thinks the moon is made out of cheese and the sun is a sun, not a star.

Stupidiot Boyfriend: I DO KEG STAND WITH 42 CLOTHE PINS ON ME NOSE
by BashStash March 21, 2015
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Who the heck is that? That's a Stupidiot, right there.
by Conor Riddle April 18, 2017
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Someone who’s so oblivious to others feelings that they’re both stupid and an idiot
Yo I was practically throwing myself at him he’s such a stupidiot
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a mixture of a stupid person and an idiot
don't be a stupidiot!

look it's a stupidiot
by stupidiot March 2, 2007
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Someone really stupid. see wordid/word
That mofo is one big stupidiot.
by moofoo April 23, 2003
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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 14, 2009
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