The act of manipulating the definitions of your data post-hoc to take advantage of outliers or other positive abnormal results.
Manager: Our sales this month were horrible!
Analyst: But if you just circle this area here, or highlight this product- look, it's not so bad!
Manager: But our sales still sucked. You're just datamandering.
Daumantas: a tall, lanky, blue eyed, blonde haired lithuanian retard. He often gets rejected by girls. He ejaculates into his eye often. he likes to pretend that people like him when they really hate him. he falls asleep in class and has a nasty habit of watching people make out and have sex. hes a part time creeper who likes to crash into other men. he likes dick.