Concede to (someone or something) phrasal verb
Used when you yield to someone or give something away, or unwillingly let someone have something.
My brother is very generous. He always concedes to what I want.
My darling's so stubborn; therefore, I sometimes concede to her behavior.
If you say someone sticks his or her nose up in the air, you think that he or she is haughty, condescending, or disdainful.
To unwillingly give up control of something
To surrender.
The verb "concede" should be conjugated according to its tense.
I have conceded to this boy so much that he doesn't listen to me.
The origin of this expression is not clear.
Children or adults often say this phrase to get their friends to join in something, especially to jump into a swimming pool (pond, lake, etc.)
“Last one in is a rotten egg!” yelled Jane, jumping into the pool.