if you know what I mean /ɪf ju ˌnoʊ wʌt aɪ ˈmin/ phrase2 •Used to allude to something unsaid or hinted at.He seemed a little too interested in the details, if you know what I mean [implying that perhaps he had ulterior motives]. •(informal) Used as a rhetorical question to confirm attention, understanding, or agreement at the end of an utterance or each segment thereof; synonym of do you know what I'm saying.Then you've got to jiggle it just right, if you know what I mean, before you can get it to come out of there.