a rush on (something)

a rush on (something)

A large, sudden, and widespread demand for something. I'm sorry, we had a rush on the chocolate cheesecake this afternoon, so I'm afraid we're out. There's always a rush on bed linens when the college students move back into town for a new semester.
See also: on, rush
Farlex Dictionary of Idioms.

rush on something

 and run on something
a large demand for something. There was a rush on bottled water during the drought. During the hot summer, there was a run on air conditioners.
See also: on, rush
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs.
See also:
  • a run on (something)
  • address (one's) comments to (someone or something)
  • address comments or remarks to
  • address (one's) remarks to (someone or something)
  • be in it for
  • be pressed for time
  • ask (something) of
  • ask of
  • be pushed for time
  • be at a disadvantage