Dodman

Yt is as great pyte to se a woman wepe / As yt is to se a sely dodman crepe, / Or, as ye wold say, a sely goose go barefote.

Source: wiktionary

In that a Snayl or Dodman, vvhich is not only not vvarm, but to our feeling, very cold, is fain to brood its as cold svveatty eggs, neſted upon a cold vvet earth, beſpievving them about vvith the fuzze of a cold clammy froth, in coldish [d]raughty vveather, and all making vvay to a kind and timely hatching of them: […] I dare undertake to light ſooner of that vvarmth and reek and air, that vvill hatch an hens egge, than that cold and devv and clammineſs, that goes to the hatching of a ſnails.

Source: wiktionary

A snail is also called Dodman in Suffolk and Norfolk.

Source: wiktionary

"[…] I'm a reg'lar Dodman, I am," said Mr. Peggotty, by which he meant snail, and this was his allusion to being slow to go, for he had attempted to go after every sentence, and had somehow or other come back again; "but I wish you both well, and I wish you happy!"

Source: wiktionary