idioms involving “horse”

Get off one's high horse

Stop acting as if one is superior to others

“He needs to get off his high horse and start working as hard as everyone else on the team does.”

Horse sense

Common sense

“Our new manager is well educated; he has a lot of book sense, but no horse sense.”

Straight from the horse's mouth

To hear something directly from the person involved in it

“There have been many rumors circulating, but I heard the truth straight from the horse's mouth.”

Don't switch horses midstream

Don't change workers (or leaders) mid-project

“The prime minister's campaign speech is “Re-elect me; don't change horses mid-stream.”

Horse around

To play, to goof off

“The computer programmers horsed around too much and didn't finish the program by the deadline.”