Someone who can talk a good game but cannot back himself up. Relies heavily on others who are his opposite (able, but a poor orator) to sort out any problems. One who makes idle threats.
Random13yearold: I'll hax your computer! I'll hack a virus!!!111
KFJ: You're all mouth and no trousers, but I'd love to see you "hack a virus".
Trousers or Tracksuit Bottoms which are extremely comfortable. loose to wear and hang low from the hip, these are the ultimate item of clothing when all you wanna do is "Kotch"
80% Cotton 20% Polyester are recommended.
After a heavy night out:
"Shit man you bashed loads of beanz"
"It's ok, i got my kotch trousers"