Bloody - the all-arounder, fits everywhere, describes everything
Soak/soakin' - dampened with bad qualities
Rot - the one that you conjugate a thousand ways, connotation of weakness
Pus-Giver - don't call someone this
Puddle-Splasher - an idiot
Mosquito - someone so annoying it's like they're stealing your blood
Son of a frog - you were spawned in a pool you gross jerk
Comments
"Dry," in general, being good (or perhaps clever, useful, as in "she's a dry one. You can trust her").
"Wet": kill someone (this is, of course, current slang as well!)