check off

verb
RareNot in standard dictionaries
1

To mark items on a list (with a checkmark or by crossing them out) that have been chosen for keeping or removal or that have been dealt with (for example, completed or verified as correct or satisfactory).

2

To carry out a decision recorded through the process of checking off an item on a list, including dealing with it, removing it from the possible choices, or removing the not checked items from further consideration.

3

To deduct union members' dues from their wages.

4

To request protection by prison authorities.

#slang