prairie dog

Short definition from Wiktionary

Noun

1. 1
   Any of genus Cynomys, small, stout-bodied burrowing rodents with shallow cheek pouches, native to North America and Central America.

Verb

1. 1
   To pop up from a hole or similar in a manner that resembles the way a prairie dog pops his head up from his burrow.
2. 2
   To struggle to hold back an involuntary bowel movement.
3. 3
   Alternative form of prairie dog.