1. whatsay - Adverb
2. whatsay - Interjection
whatsay
(slang, interrogatory) What did (what'd) you say
(slang) Used to introduce a proposal
Whatsay to splitting the cost with me?
Whatsay we split the cost?
(archaic, interrogatory) What say
Whatsay you, my Lord?
Whatsay our friends to our new allies?