This one had me laughing yesterday.
Aiden: Mama, I want to give you some butt love.
Aiden: Let's butt love.
Mommy: Um, Aiden, what is 'butt love' exactly?
Aiden: It's where we bump our butts together so they can hug.
Mommy: I don't think that's a good idea--how 'bout I just give you a regular hug, if you want to cuddle. And we really shouldn't say "butt love." I know that you are just talking about a silly way to love on mommy, but to other grown-ups, that means something completely different that is not at all OK for kids to talk about.
Aiden: Huh? What does it mean, Mommy?
Mommy: Let's just say it is something you'll learn about when you are older...
Yeah, THAT was an interesting conversation! From the mouths of babes...