the act of wearing abercrombie and fitch clothes, in which case this can be also known as "dooshbagging" because of the copious amounts of doosh that will be thrown upon you for wearing these clothes; until you drown in a large seething pile of queefed on tambons and bloody vage.
Donna Summer- hey did you see zach effron fitchin?
Snoop dog- Yeh i threw some dirty tampons on that bitch"
Fucking bitching, adjective
Those leather chaps that dude is wearing are fitchin.