Here's what rhymes with lappish.
apish uppish Words that almost rhyme with lappish
rubbish sluttish judges crutches grudges drudges nudges trudges dhotis fudges budges ablative locative smudges adjudges lenitive rejudges fricative vocative mutative begrudges prejudges analogise transitive appositive misjudges insipidus proliferative youngish lumpish punish sluggish knavish lungfish mulish puckish tallish thuggish frumpish publish monkish sunfish republish