Highway hazard

• Snail, e.g
• Slug
• Snail, e.g.
• Tortoise, e.g.
• Hardly a speed demon
• Dawdler has to stick on second base

Wikipedia Word definitions in Wikipedia
Slowpoke is a weekly comic strip by Jen Sorensen that appears in alternative weeklies and other publications in the United States . Slowpoke began in 1998 as a 24-page book, Slowpoke Comix #1 . Later that year it became a weekly strip, in which format it ...

Wiktionary Word definitions in Wiktionary
n. (context US Canada English) A mild insult for a person that moves slow.

Douglas Harper's Etymology Dictionary Word definitions in Douglas Harper's Etymology Dictionary
also slow poke , 1848, American English from slow (adj.) + poke (n.3), the name of a device, like a yoke with a pole, attached to domestic animals such as pigs and sheep to keep them from escaping enclosures. Bartlett (1859) calls it "a woman's word."