As a noun filly
is a young female horse.
As an adjective frilly is
having frills; frilled.
filly
English
Noun
(
fillies)
A young female horse.
(dated) A young attractive female.
- Hey, Homer, get a load of the gams on that filly !
See also
* colt
* foal
* mare
* stallion
* fille
frilly
English
Adjective
(er)
Having frills; frilled.