No, it is not possible to contract the typical STDs, such as syphilis, gonorrhea, chlamydia, hepatitis B, etc. from wearing someone else's dirty underwear. However crabs and scabies, may be spread in this fashion.
Tick-tock-tick-tock-tick-tock. The Crocodile or Tick-Tock the Crocodile is a crocodile that stalks Captain Hook. At some point Peter Pan had a fight with Captain Hook in which he cut Hook's left hand off and fed it to the crocodile.
The largest crocodile species lives in Australia. It's the famous Australian saltwater or estuarine crocodile, known as Crocodylus porosus Males get up to 23.5 inches in length and weigh up to a ton (900 Kg or 2000 pounds). Australian females run half this weight & length. 1250 pounds is the average weight of North American crocs but it may vary depending on diet and habits of the crocodile.