Ermmmmm. its kinda weird

someone who doesn't know anything about anything (aka a dummy)

a person who doesn't know anything about anything

An aggressive email exchange that results in communication back and forth.

It specifically means a friend of two girls who is fluffy and made of cotton candy and is a perverted fuck who loves to eat buttholes. He's a character from Inside Out but he somehow got out of the television. He loves to play with Shopkins and Barbie Dolls.

Who's your friend who likes to play?
Bing Bong, Bing Bong
His rocket makes you yell "Hooray!"
Bing Bong, Bing Bong
Who's the best in every way, and wants to sing this song to say
Bing Bong, Bing Bong!

Bingbong is a silly codeword a man will use when he wants to tell his friend his opinion on the physical attractiveness of a women walking by. The codeword is a compound word which first half is about the face and the second half about the body. Bing means attractive, bong means unattractive. The four possibilities are: bingbing (pretty face, unattractive body) bingbong (perfect in every way) bongbong (butterface but awesome body) and bongbing (not so attractive whatsoever)