English

Noun

colt's tooth ‎(plural colt's teeth)

1. One of a horse's first set of teeth.
2. (figuratively) Youthful desires, especially lust.
   • c. 1390, Geoffrey Chaucer, "Wife of Bath's Prologue", Canterbury Tales:

     He was, I trowe, a twenty wynter oold, / And I was fourty, if I shal seye sooth, / But yet I hadde alwey a coltes tooth.

   • 1623, William Shakespeare, Henry VIII:

     Well said Lord Sands, / Your Colts tooth is not cast yet?

   • 1723, Charles Walker, Memoirs of Sally Salisbury, V:

     his Worship, who had still a Colt's-Tooth in his Head, cast an amorous Leer upon SALLY [...] Let me view her again, says the Justice, calling for his Spectacles, and at the same time gave her a gentle Squeeze by the Hand [...].