馱馬
Horse \Horse\, n. (Student Slang)
(a) A translation or other illegitimate aid in study or
examination; -- called also {trot}, {pony}, {Dobbin}.
(b) Horseplay; tomfoolery.
Dobbin \Dob"bin\, n.
1. An old jaded horse. --Shak.
2. Sea gravel mixed with sand. [Prov. Eng.]
dobbin
n : a quiet plodding workhorse [syn: {farm horse}]