Hobbyhorse (Noun)
Meaning 1
A child's plaything consisting of an imitation horse mounted on rockers; the child straddles it and pretends to ride.
Classification
Nouns denoting man-made objects.
Synonyms
Hypernyms
Meaning 2
A topic to which one constantly reverts; "don't get him started on his hobbyhorse".
Classification
Nouns denoting cognitive processes and contents.