Sense: 1, 4-5
Date: 1400-1500
Origin: BAT12
Sense: 2-3
Date: 1800-1900
Origin: Probably from bate 'to beat the wings' (13-20 centuries), from Old French batre 'to hit'


2 verb
bat2 past tense and past participle batted, present participle batting
1 [intransitive and transitive]DSCDSB to hit the ball with a bat in cricket or baseball

not bat an eye/eyelid

informal to not seem to be shocked, surprised, or embarrassed:
They started talking about sex, but she didn't bat an eyelid.

bat your eyes/eyelashes

if a woman bats her eyes, she opens and closes them several times quickly in order to look attractive to men

go to bat for somebody

American English informal to help and support someone

be batting a thousand

American English informal to be very successful:
She's been batting a thousand since she got that job.

bat something ↔ around

phrasal verb
to discuss various ideas or suggestions

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