What is the meaning of the word "souse"?

Definitions:

a person who drinks alcohol to excess habitually noun
- The souse sat on the park bench and drank from a paper bag.
pork trimmings chopped, pickled, and jelled noun
- I love snacking on souse.
to become drunk or drink excessively verb
- I soused on Friday night so I'm a little hungover today.
to cook in a marinade verb
- I soused the lamb for two hours.
to cover with liquid verb
- I soused the laundry in the bath.
to immerse briefly into a liquid so as to wet, coat, or saturate verb
- I soused the cookie in some milk.