Top Definition
1) A word of Finnish internet slang, such as "fab" (fabulous) in English.

2) However, in Finland "ihku" also stands for a specific kind of wart, which can be found from the tip of horse's penis. Very little of the people using the word know this, regretfully.
1) "Ooh, I love Adam Lambert! He's just ihku!"

2) "Ugh, my horse has an ihku again. Looks a lot like Paris Hilton, too."
by androgyn June 26, 2009
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