Bae-Cow

1) A Bae-Cow is a very big honor to call your girlfriend. By calling her "Bae-Cow" , making cow jokes about her and saying the word/sound "moo" very loudly in any word you say you are actually showing your affection in the greatest way possible.

2) Type of Onion

Boyfriend: "I think it's time to milk my Bae-Cow."
Girlfriend: "Moooo"