hobbyhorse
1 ENTRIES FOUND:
plural
hobbyhorses
plural
hobbyhorses
Britannica Dictionary definition of HOBBYHORSE
[count]
1
:
a subject that someone speaks about or complains about often
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Once he gets on his hobbyhorse and starts talking about taxes, you can't get him to discuss anything else.
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She's been riding that hobbyhorse for months.
2
:
a stick with a horse's head at one end that a child pretends to ride
