A phrase used to urge someone to accept a particular situation, often an unpleasant or undesirable one. This is my department, so I'm in charge, and Ed better get used to it.
better get used to it
and BGUTI
phr. & comp. abb. It may be bad, but you should get used to it. Sorry you don’t like it. BGUTI. A: I am so not used to it! B: Better get used to it.