Absoflippinglutely check means: A call-and-response move where someone drops 'absoflippinglutely' and another person replies or captions with 'absoflippinglutely check' to confirm that yes, maximum emphatic agreement just occurred.. There is no real cause for parental concern; it is descriptive vocabulary rather than risky behaviour. If your teen uses it, context will usually make the intent clear. A short, curious question about where they heard it is usually all that is needed to know whether to follow up.