(1) {interrog.} For what reason; why? * /I told Mary what I was going to town for./ * /What are you running for?/ - Often used alone as a question. * /Billy's mother told him to wear his hat. "What for?" he asked./ Compare: HOW COME. (2) {n. phr.}, {informal} A scolding, or other punishment. - Usually used with "get" or "give". * /Tom got what for from his father for answering him rudely, and I heard him crying in the house./ * /The teacher gave me what for because I was late./
WHAT FOR
Meaning of WHAT FOR in English
Slang English vocab. Английский сленговый словарь. 2012