endure pain or a hard situation with courage and perseverance (expression used before the days of anesthetics when soldiers held a bullet between their teeth to endure the pain of surgery)
bite (on) the bullet sıkıntı vb. erkekçe katlanmak,sişini sıkmak
الواصلة
bi·te (on) the bul·let sı·kın·tı vb. er·kek·çe kat·lan·mak,·si·şi·ni sık·mak