tri·o (tr)
n. pl. tri·os
1. Music
a. A composition for three voices or three instruments.
b. A group of three singers or three instrumentalists.
c. The middle, contrasting section of a minuet, scherzo, march, or various other forms.
2. A group of three.
3. A term used for a situation where a person has sexual
intercourse with a set of three friends. For example, a boy who has
sex with a group of three friends is said to have 'completed the trio'
"Did you hear about
Tom? He porked Hannah Walker last night"
"Really? Does that
mean......"
"Yeah, because he rooted
Jenny,Zoe and now Hannah, he's completed the trio."
"He'll definitely have the bad aids now then"
"Yup"