worm

noun

any of numerous relatively small elongated soft-bodied animals especially of the phyla Annelida and Chaetognatha and Nematoda and Nemertea and Platyhelminthes
screw thread on a gear with the teeth of a worm wheel or rack
a software program capable of reproducing itself that can spread from one computer to the next over a network
“worms take advantage of automatic file sending and receiving features found on many computers”
a person who has a nasty or unethical character undeserving of respect

louseinsectdirt ball

verb

to move in a twisting or contorted motion, especially when struggling
“I wormed my way out of my attacker's grasp.”
twist