Flogging a Dead Horse 

For a male to persist in virginal intercourse after losing his erection

After only lasting 1 minute Sam was flogging a dead horse to Jenny

Flogging a Dead Horse by Ginger Christ September 3, 2009

beat a dead horse

the beating refers to the overusing of the "dead horse". Said horse is a metaphor for a joke, and the fact that it's no longer living implies that it's no longer funny

person1:hey...is that a dead horse
person2:uhhh.....yyy..yes i believe it is...why do you ask?
person1:oh no reason...say...you wouldn't wanna beat that dead horse would you?
person2:i thought you'd never ask
persons1+2 proceed in beating the dead horse
five minutes later, cop enters
cop:hey are you beating that dead horse?
persons1+2:yes...
cop:...well...care if i join you?
persons1+2:not at all
cop starts shooting horse whilst the tho persons continue to beat it with sticks, fade to black, THE MORE YOU KNOW enters along with someone from Friends talkin' about some stupid crap.THE END...But is that really the end?...Yes, yes it is...Or is it?

beat a dead horse by liamofthe----- April 6, 2004

harry potter and the dead horse

The eighth book in the Harry Potter series. All copies of this book will be invisible to everyone except the owner, due to illegal book sharing, so everyone has to get their own copy instead of borrowing others, seeing as J.K. Rowling is a poor, struggling artist who needs every bit of profit she can get... right. (sarcasm, for those who didn't recognize it)

Person 1: OMFG! Harry Potter and the Dead Horse is coming out! Gee, I wonder why it has such a weird title... what do you think?
Smart Person: personally, I think it's no use beating a dead horse, like J.K. does... jeez, it must be fuckin' horseburger by now... figuratively speaking.
Person: Oh. I still don't get it.
Smart Person: See what I mean...

harry potter and the dead horse by RoseThourne August 13, 2007

Blogging A Dead Horse

When a troll continues arguing in a flame war thread that is long dead as both sides have made all of their points and have stopped caring.

Offenders are typically crying for attention, with have low self esteem and attention deficit problems.

Similar to the traditional "flogging a dead horse".

Pseudo-intellectual 1: Well I don't want to say too much on the topic, but: ... (5 paragraphs of opinionated rant).

Pseudo-intellectual 2: I support this, and would like to further add: ... (3 paragraphs of rhetorical questions and half-baked psycho-analysis).

<Thread Dies>

<2 weeks later>

Ring-in: This isn't really my argument but in my opinion both sides are wrong. I don't want to say a lot but... (10 paragraphs of literary quotes, topical allusions and first year philosophy diploma name dropping).

Observer: Doesn't this ring-in know that he's blogging a dead horse?

Blogging A Dead Horse by Ev. I December 1, 2009

beat the dead horse 

To continue jacking off after ejaculation.

Henry: "Yeah bro me and my friends were all sitting around a fire, just beating the dead horse!"

Joe: "Be careful man! If you beat the dead horse too much you could get a 90 degree angle cock from that!"

Henry: "You only get one life joe, live it up."

beat the dead horse by gangstaa347623497532 January 1, 2012

beating the dead horse 

Beating a dead horse is alot loke selling out- you just go a bit overboard with it. If people say you're beating a dead horse, you need to stop what you're doing ad re-evaluate your decisions.

Man, Supernatural won't stop beating the dead horse until it stops shitting out money.

beating the dead horse by Not dunstiel January 9, 2017

Don't beat a dead horse 

Acknowledging Urbandictionary as a credible dictionary in all of your classes.

Don't beat a dead horse:
"What is a Pepsi Challenge?"
"Well Urbandictionary says..."

Don't beat a dead horse by Anonghgh August 31, 2013