A retromingent is an animal that urinates backwards.
Posturing as 'progressive,' the leftist pisses on the past, seeking to erase its memory by destroying monuments and redacting the historical record. There is no piety in the leftist, no reverence. Try using those words at a Manhattan or Georgetown cocktail party and see what happens.
This political retromingency helps explain the leftists' lack of respect for language.
Related: On Reverence