蠕蠕

Squirm \Squirm\ (skw[~e]rm), v. i. [imp. & p. p. {Squirmed}
(skw[~e]rmd); p. pr. & vb. n. {Squirming}.] [Cf. {Swarm} to
climb a tree.]
To twist about briskly with contortions like an eel or a
worm; to wriggle; to writhe.