hob·by·horse 
(hŏbē-hôrs′)
(hŏbē-hôrs′)n.
1.
a. A child's riding toy that consists of a long stick with an imitation horse's head on one end.
b. See rocking horse.
2.
a. A figure of a horse worn attached to the waist of a mummer, as in a morris dance.
b. A person wearing such a figure.
3.
a. A favorite hobby.
b. A topic that one frequently brings up or dwells on; a fixation.
- "Fighting Joe."
- "Fighting Joe."
- fightingly
- fighting words
- fight off
- fight-or-flight response
- fight shy of
- fig leaf
- fig marigold
- figment
- figural
- figurally
- figurant
- figuration
- figurative
- figuratively
- figurativeness
- figure
- figured
- figured bass
- figure eight
- figurehead
- figure in
- figure of speech
- figure on