The word, "Fanny", is used in Britain to mean the female genitalia.  Fanny Froth is the result of frantic and enjoyable sexual activity.
A guy on the phone to his friend:  "man I gave her Fanny Froth like a candy floss,  no I'm telling you she frothed like Bubble-bath"
by Edgar Allen Post September 22, 2006
 Get the Fanny Frothmug.
Get the Fanny Frothmug. by Bigched December 17, 2014
 Get the Fanny daggersmug.
Get the Fanny daggersmug. by Super Billy's super willys February 11, 2017
 Get the fanny bonermug.
Get the fanny bonermug. by Honeybunny99 February 20, 2017
 Get the fanny blastermug.
Get the fanny blastermug. by Famous titties January 7, 2011
 Get the Fanny Snackmug.
Get the Fanny Snackmug. by Pringlewhore January 12, 2018
 Get the Fanny callousmug.
Get the Fanny callousmug. 