When someone Ejaculate's in a pot and then leave it for 2-3 days, then shit in it. and put it in the microwave for 2 mins. Then get it out, and rub it all over your partners pussy for some lub. To add flavour or a kick add marmite! :)
In Devon (West of England), an idle, slow and incompetent person who is no use to man nor beast. Just like a slack fanny (whether British or American), someone who does a poor job of whatever they are meant to be doing.
'That Pete's such a slackfanny. Three bloody years I've been waiting for him to look at my roof.'
n. The act of hiding one's wedding tackle between one's legs to give the appearence of having female genitals. Popularised by Captain Sensible and East German female shot-putters of the 70's
fanny is a euphemism for the buttocks. So the exclamation "My Aunt Fanny!" or "My great Aunt Fanny!" is to say
"My ass!" as something of a perturbed rebuttal or reply