The Collaborative International Dictionary of English v.0.48:
Turnspit \Turn"spit`\, n.
1. One who turns a spit; hence, a person engaged in some
His lordship is his majesty's turnspit. --Burke.
2. (Zool.) A small breed of dogs having a long body and short
crooked legs. These dogs were formerly much used for
turning a spit on which meat was roasting.