(1) A stack of hay
(2) A painful muscle spasm especially in the neck or back (`rick' and `wrick' are British)
(3) Twist suddenly so as to sprain
"Wrench one's ankle"
"The wrestler twisted his shoulder"
"The hikers sprained their ankles when they fell"
"I turned my ankle and couldn't walk for several days"
(4) Pile in ricks