The act of hiding any objects you would rather your boyfriend did not see. These objects usually include cheesy movies, bad music, tampons, Bridget Jones pants, old toys (e.g. barbies, teddy bears you still sleep with, etc), retainers and posters of celebrities fitter than them.
Polly:Hey, can I come over later? I wanna watch Sex and the City.
Sophie:Sorry, just finished boyfriend proofing my room, all chick-flicks are in a box on top of my closet.
Polly: Ok, cool. Don't forget about Malibu Barbie!
Sophie: Oh shit yeah, and Mr Snuggles-chears for reminding me!