Drop a letter into "acid" & it becomes this, meaning bitterly pungent
[DOC] [TLE] Crying - The New York Times [PAR] We may properly distinguish weeping into two general kinds, genuine and ... 
designed not so much to recapture the specific meanings of tears in different 
historical .... Jerome's letter to Eustochium in the fourth century describes 
religious tears of .... during a crying fit which is not without a certain pungent 
pleasure of its own.