The greatest word of all time, simple yet pleasing in its onomatopoeic beauty. For one to commit douchebaggery, he/she is not limited to but may include some or perhaps all of the following behaviors:

- the wearing of flat-billed baseball caps backwards
- using an enormous amount of gel to spike the hair porcupine style
- wearing polo shirts or any other type of shirt with the collar popped, a disgusting gesture that should've died in the 1980s with parachute pants
- the sideways peace sign gesture
- overdone pursing of the lips
- too many visits to the tanning salon
- pointing at oneself, holding up beer cans, or making other obscenely immature gestures in solo or group photos
- following trends for the sake of fitting in (see "[goatee]")
- adding "The" or the suffix "-ster" to one's name, as in "The Rickster"

See [Guido] or perhaps [frat boy] for more. Essentially, "douchebaggery" is one of those things as easily understood by definition as it is by one's demonstrations of it.
> At least guys with mullets can cut their hair, but there seems to be no cure for the douchebaggery exhibited by frat boys overcompensating for their small members.