1 definition by King Muffin
A ninja kiss: (n) a kiss in which the two participants are kissing in a group of people, without anyone within the group noticing they are kissing.
Shelby: Did you notice?
Laura: Notice what?!
Shelby: How did you not notice!! Me and Jordon were exchanging ninja kisses all night!!
Laura: Oh wow, you two are good ninja kissers!!
Laura: Notice what?!
Shelby: How did you not notice!! Me and Jordon were exchanging ninja kisses all night!!
Laura: Oh wow, you two are good ninja kissers!!
by King Muffin February 23, 2009