bat an eyelid

bat a thousand

To achieve success at each attempt.

bat five hundred

To be successful half of the time; to have a success rate of 50%.

bat for the other team

To be homosexual.

bat one's eyes

To signal or feign by fluttering one's eyelids, as romantic interest.

bat the breeze

To chat; to shoot the breeze.

go to bat

To champion, to actively assist, to provide support (for someone).