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Webster 1913 Edition

(poōpt)

Adj.

(Naut.)

Having a poop; furnished with a poop.

Struck on the poop.

pooped ‎(comparative more pooped, superlative most pooped)

(slang) Tired; exhausted.
- 2000, Jeff Alt, A Walk For Sunshine: A 2,160 Mile Expedition for Charity on the Appalachian Trail, page 138
  Well, I've walked 35 miles since yesterday to get here, so I'm pooped
(nautical) Fitted or furnished with a poop.
(nautical) Having had a wave come over the stern from abaft.

pooped