the.com/aftertaste

means The lingering taste that remains in your mouth after you've swallowed food or drink — and, by extension, the residual feeling left behind after an experience or event.

from A straightforward compound: 'after' plus 'taste,' stitched together in English to name a sensation that comes after the main one. The literal sense (the flavor lingering post-swallow) came first; the figurative sense (a sour feeling left by an unpleasant experience, like a scandal or bad decision) followed naturally, since taste had long doubled as a metaphor for judgment and experience in general.