Here's what rhymes with flefn.
then hen sen fn fen when men ten den pen ben ken yen pn wen wenn chen denn jen ren wren again againe glen amen cayenne lawmen oilmen pitchmen businessmen penmen weathermen conmen middlemen handymen minutemen anchormen councilmen patrolmen comedienne signalmen tragedienne equestrienne Words that almost rhyme with flefn
them hem femme heme feng sheng stem gem mem rem hmm pm eadem rpm morpheme blaspheme condemn ppm diadem cairn demesne fluorescein relearn ramequin moderne