get off at

get off at (some place)

euphemism To use the withdrawal method of contraception. The place named after "at" can be any railway station that comes just before the end of the line. Primarily heard in UK. You know, there's still a chance she'll get pregnant even if you get off at Chalfont and Latimer.
See also: get, off
Farlex Dictionary of Idioms. © 2022 Farlex, Inc, all rights reserved.

get off at —

practise birth control by the withdrawal method. informal euphemistic
The open slot in the phrase is filled by the name of any of a range of railway stations (e.g. Clapham Junction in London, Paisley in Glasgow) immediately preceding a terminus.
See also: get, off
Farlex Partner Idioms Dictionary © Farlex 2017
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References in periodicals archive ?
He touches her and tells her he'll get off at her stop.
As it was approaching 8pm on his return journey he decided it would be better to get off at the last station before his destination because it was closer to his home.
But he was told to cough up when he put his ticket into a machine to get off at Darlington station.