sneaker

noun

Etymology: From sneak + -er. The shoes sense is a reference to the quietness of the shoes.

1. One who sneaks.

   “Beshrew the man who on such a day as this, the general festival, should affect to stand aloof. I am none of those sneakers. I am free of the corporation, and care not who knows it.”

2. An athletic shoe with a soft, rubber sole. A trainer.
3. A vessel of drink.

   “Spectator I have just left the right worshipful and his myrmidons about a sneaker of five gallons!”

4. A large cup (or small basin) with a saucer and cover.
5. A sneaker male.

   “These sneakers may go on this way indefinitely, or, if one of the big males somehow dies or disappears, a sneaker male's hormones will trigger a huge growth spurt and he'll metamorphose into an alpha male.”