1. To be sexually excited, to have a stiff penis. from the latin, arrectusit

2. In south america it can also mean to be angry all the time.

3. it can also mean in some slang situation to mean something to be spectacular.

1st example: "Just looking at that woman makes me arrecho"

2nd example: "that guy is always in a bad mood always arrecho."

3rd. "That truly was an arrecho show"
by Mr. Montoya September 9, 2006
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Siempre estoy arrecho contigo. (by male to female)
Siempre estoy arrecha contigo. (by female to male)
by yeseniab December 1, 2006
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Verb; to instantly bomb a small village in China
"Man, I'd love to Arrecho this weekend"
by arrechohater September 10, 2019
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