befoul russian

• сори́ть

  litter, throw about, befoul, mess up

  waste, squander

• обга́дить

  to soil, to befoul, to make dirty, to mess up

  to badmouth, to denigrate, to slander, to spoil, to trash

• изга́живать

  befoul, spoil utterly

• опога́нить

  befoul, defile