Top Definition
A way to write the word "kiss" when you're making a joke, or when you just for some reason feel like the word "kiss" is a dirty word. :o

Somewhat similar to saying or writing pen15
Did you ki55 her last night?" "Why did you write kiss like that" "That's how I've always written ki55...
#ki55 #kiss #pen15 #ki44 #ki22
by MaddieG13 June 07, 2010
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