Often a goody-two-shoes, but generally quite a nice guy. Can be outgoing too. Semi good looking, and gets along with girls better than boys, usually because the boys are jerks. Acts older and more mature than his age.
This guy is a total mikko, they say they are really nice. Lets be friends with him!
by Mikdudu February 29, 2016
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You r a mikko
by Adjective March 15, 2014
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Where is Mikko?

Missä Mikko?
by regina July 10, 2004
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stammer, stutter, or any slaughter of the English dictionary.
Also,
Real-life Tito from Nick's Rocket Power cartoon. Image can be found at www.cooltoons.com/newsletter/newsletter041/tito.jpg
I was so pissed off that I pulled a Mikko during my explanation. ALSO, I have enrolled in an ESL (English as a Second Language) class to correct my Mikko.
by Dirtyboy April 9, 2003
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The extremely sexy and gorgeous drummer from Apocalyptica. He is a very talented musician. He hails from Finland (where he also resides) and his birthday is December 31, 1975.

He gives incredible hugs and has a beautiful smile. He's really funny too!
When Mikko Sirén hugged me.... I nearly creamed myself! That is one hell of a drummer. I love Apocalyptica!
by LifeBurns August 6, 2008
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Amazing, guitar-playing, Finnish bit of yumminess. A.k.a. front man of Daniel Lioneye ( and the rollers)

Sweet, sensitive, shy, deep voiced, needing a tik-tak but oh let me give it out of my own mouth man of my everything..
Mikkoni, Linde, Lintti, Linssi(sorry Mikkoni)
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