Used as an exclamation when something has just gone your way. Example: After sinking a 3-point jumper, the basketball player said Whosyurdaddy. or Nabbing a parking space close to the store during Holiday shopping, a driver might be heard to exclaim Whosyurdaddy!
WHOSYURDADDY
Meaning of WHOSYURDADDY in English
Slang English vocab. Английский сленговый словарь. 2012