An online dating site. Pretty decent for meeting new people. Also known as POF.
I met my boyfriend on Plentyoffish.
A free online dating agency which should be avoided at all costs. Full of dirty old men and no-hoper teenagers with filthy underpants desperately seeking attractive young women. And as for the photographs - when the hell did you last see a woman who looked like that and needed to use a free dating agency? Someone I know of examined a photo closely and was sure he could see the staple puncture holes where it had been cut out of a glossy magazine.
More like Plenty of Fishy Fannies.
Beware. The gorgeous blonde on Plenty Of Fish you're exchanging suggestive e-mails with is probably really a morbidly obese middle-aged man who likes nice young boys.