Dictionary / Vocabulary / ぎっくり腰
ぎっくりごし
strained back; slipped disk; lumbosacral strain
Also written ギックリ腰
そっちこそ、ギックリ腰で立てなくなってもおいて帰りますわよ。
You worry about yourself. If you put your back out and can't stand we'll go home without you!
ぎっくり腰なんです。
I have a strained back.