Here is the full list of all 21 WASTED achievements.
Witnessed an enemy mutation.
Got killed for the first time.
Welcome to the Western Wastes.
Got a Hangover for the first time.
Defeated Purifier Starr.
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.
Got through an entire floor of the Cooler without alerting anyone.
Got killed by a Mutapupa.
Defeated an S.O.B. Purifier.
Found the Alistair VI.
Defeated Master Y.
Finished the quest "In Dick's Shadow."
Killed someone while stuck in a bear trap.
Wore all three types of fanny packs at the same time.