Perhaps because of certain distinct physical differences between male and female, this term has been used to describe abilities that are more common in the male sex. Such abilities include; map reading, spatial awareness, computer programming, DIY, and mathematical ability.
Said in response to someone saying thanks. Comes from a Joke where David Hasslehoff asks a Clerk to change his name to the Hoff... when the Clerk said Sure, No Hassle. Now instead of saying "No Hassle" people just say Hoff.
Someone doing something that they shouldn't be doing e.g. a ref giving a bad decision at a game, a child playing with a box of matches, a garda pulling up someone for pissing in a dark alley etc.