Foam-flecked

Now the hostess became his mistress: his love letters were passionate, indiscreet, and hate-filled, featuring Briish military secrets and foam-flecked rants against Jews:

Source: wiktionary

Stephenson had already worked himself into something just short of a foam-flecked tirade by the time Will arrived.

Source: wiktionary

The stories were fabulous bubbles of outrage (prawn-cocktail flaboured crisps were never banned), but the foam-flecked hymns of hate were real.

Source: wiktionary