Definition:
Depending on intonation; referring to the third wheel, or the more the merrier!.
Phrase:
meaning to include; you, me, and the person and or people I, you, and or the situation are bound/obligated to, and or whom ever may be so inclined to participate either of free will or by circumstance.
Aaron: Dude please come to my mother's house this weekend, I don't want to go alone, I've asked my girlfriend, Ruben and you.
Me: eh why not, maybe I'll cook breakfast and we can go sledding.
You me and Dupree.
Aaron: yeah! Good idea!
Ex:2.
Jae: Dude wtf, I thought it was just supposed to be us two in this bed.
Aaron: yeah my bad, My dog likes sleeping with me.
Jae: great I have to share a bed with you, me, and Dupree