-pə(r) noun
( -s )
Etymology: whop (I) + -er
1. : something unusually large or otherwise extreme or extravagant of its kind
returned with an armful of harmonicas, ranging in length from one inch to a whopper of over two feet — New Yorker
spent a thousand dollars on a whopper of a black velvet backdrop — R.L.Taylor
2. : an extravagant or monstrous lie
droning whoppers into the telephone and unloading misrepresented stocks — A.W.Baum