Green’s Dictionary of Slang

filter v.

1. (US) to catch on (to a story or joke).

[US]W.J. Kountz Billy Baxter’s Letters 7: Sarpo and his sons told some funny stories. My, but they were to the saddings! I told one of my best, and nobody filtered but Teddy.

2. to desert.

[UK]J. Morton Lowspeak.