Here is the full list of all 21 WASTED achievements.
Got through an entire floor of the Cooler without alerting anyone.
Defeated Purifier Starr.
Defeated an S.O.B. Purifier.
Got killed by a Mutapupa.
Finished the quest "In Dick's Shadow."
Wore all three types of fanny packs at the same time.
Killed someone while stuck in a bear trap.
Witnessed an enemy mutation.
Got a Hangover for the first time.
Got killed for the first time.
Welcome to the Western Wastes.
Defeated the Coyote.
Convinced the BEEZ to begin recruitment.
Convinced the BEEZ to start dating around.
Convinced the BEEZ to help themselves.
Sided with the New Skeleton Army.
Sided with the Syndicate of Buzzkills.
Sided with... uh...
Finished the game.
Found the Alistair VI.
Defeated Master Y.