pick up the bill

pick up the bill (for something)

See: pick up the tab (for something)
See also: bill, pick, up

pick up the bill/tab

  (informal)
to pay for something, often something that is not your responsibility When we go out for dinner it's always Jack who picks up the bill. (often + for ) It's the taxpayer who picks up the tab for all these crazy government schemes.
See also: bill, pick, up