CATCHWEIGHT
Adverb
catchweight (not comparable)
(horse racing) Without any weight restrictions; without being handicapped.
Adjective
catchweight (not comparable)
(sports) Without any weight restrictions; having no handicap.
Having no standard weight, but rather having weight determined when packaged for sale or shipping.
Noun
catchweight (countable and uncountable, plural catchweights)
(sports) A weight category other than the standard weight categories: either an agreed-upon weight range or an agreement to allow any weight.
The weight of an item that is not set to a standard, but which varies around an approximate value.
The weight of all the fish caught.
Source: Wiktionary
Catch"weight`, adv. (Horseracing)
Definition: Without any additional weight; without being handicapped; as,
to ride catchweight.
Source: Webster’s Unabridged Dictionary 1913 Edition