look up any word, like smh:
 
3.
Someone who is boring and tries to be funny. Is usually not liked greatly by younger teens. Tends to enjoy science and making kids hate them. The kind of person that if they belt that spins, they would announce to everyone, "look, it spins!" to try to be comical/funny.
"That heiko is really getting on my nerves. Look at him staring at that girl reading the book!"

"That wasn't funny, don't be such a heiko."
by Bob Naoember March 10, 2008
 
1.
Name given to the worlds most awesome and handsome man on the planet.
by Anonymous March 20, 2003
 
2.
just some gay person
OMG, you're just such a big heiko!
by Anonymous March 20, 2003