Английский словарь американских идиом - grin and bear it

{v. phr.}, {informal} To be as cheerful as possible in pain or trouble; do something without complaining. * /The doctor told Mrs. Howard that she had to stop eating sweets if she wanted to lose weight, and she tried to grin and bear it./ * /If you must have a tooth drilled, all you can do is grin and bear it./ Compare: MAKE THE BEST OF, PUT UP WITH.