clumpering

Verb

clumper (third-person singular simple present clumpers, present participle clumpering, simple past and past participle clumpered)

1. (intransitive, obsolete) To form into clumps or masses.
   • Vapours […] clumper'd in balls of clouds.1647, Henry More, A Platonick Song of the Soul
2. To move heavily; to clomp or clump.
   • The palms of TV looked especially welcome as the plane clumpered down on a hazy tarmac in a greenish, weedy field.1991, Alexander Buzo, Prue Flies North, page 68
3. To make a clumping noise.
   • The cold, indeed, was now becoming so intense as to congeal and skim over all the pools and still eddies of the river, and make solid ice along the shores of the rapid currents of the stream; while even the ground was fast becoming so frozen as to clumper and sound beneath the hurrying tread of our...1890, Daniel Pierce Thompson, Gaut Gurley, Or The Trappers of Umbagog, page 221

See all 13 meanings of clumper