a cadet who: is stupid and/or acts like he/she is in the armed forces yet he/she isn't because he/she hasn't gone to basic traininig (boot camp).
NOTE: West Point cadets are the onlyexception to this term.
Johny is cadidiot because he is in college and is a member of his ROTC program and wears his uniformeverywhere he goes and thinks he is a bad a**.
2) acts like he or she is already in the military.
In the first case, it can be used affectionately, or may just refer to the fact that a cadet lacks the experience and knowledge of a trained service member, rather than referring to an actual lack of intelligence. In the second sense, it is almost exclusively a pejorative term for a cadet who is arrogant or foppish.
1) That cadidiot can't even read a map.
2) That cadidiot thinks he's some sort of Green Beret or something because he's finally learned to read a map.
Professor Bloggins, who has not served a day in the military or commanded anyone or anything, has spent 25 years studying military command as a professional academiot.
People who order too much on Amazon but don’t have clue how to return the items. Eg. Smart enough to place an order but not smart enough to understand the return process.