a twink for breeders - ie a young or young-looking man with a slender, ectomorph build, little or no body hair, and no facial hair that is straight.

Most commonly used to describe actors (often from the UK) that women find very appealing, eg David Tennant and Benedict Cumberbatch.
The Tenth Doctor is such a damn breeder twink.
by Drakewind October 23, 2011
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