Definition of Yerk

Babylon English Dictionary
beat severely, thrash; excite, arouse; move with a quick sudden motion; bind together; kick, strike with the foot
Computers) object-oriented programming language based on a modified Forth kernel (developed by Kriya Systems)
Search Dictionary
Yerk Definition from Language, Idioms & Slang Dictionaries & Glossaries
Webster's Revised Unabridged Dictionary (1913)
(v. t.)
To throw or thrust with a sudden, smart movement; to kick or strike suddenly; to jerk.
  
(v. t.)
To strike or lash with a whip.
  
(v. i.)
To throw out the heels; to kick; to jerk.
  
(v. i.)
To move a quick, jerking motion.
  
(n.)
A sudden or quick thrust or motion; a jerk.
  
Webster's Revised Unabridged Dictionary (1913), edited by Noah Porter. About
hEnglish - advanced version

yerk
\yerk\ (?), v. t. [imp. & p. p. yerked (?); p. pr. & vb. n. yerking.] [see yerk.]
1. to throw or thrust with a sudden, smart movement; to kick or strike suddenly; to jerk. their wounded steeds yerk out their armed heels at their dead masters.
2. to strike or lash with a whip. [obs. or scot.]
yerk
\yerk\, v. i. 1. to throw out the heels; to kick; to jerk. they flirt, they yerk, they backward fling.
2. to move a quick, jerking motion.
yerk
\yerk\, n. a sudden or quick thrust or motion; a jerk.