A conflict in which two parties (ususally male) are vehemently disputing something of limited relevance. Generally, both parties are somewhat wrong, but each refuses to be back down for fear of being thought the have the smaller of their two penises. Similar to a pissing match, but generally, the conflict involved involves a larger element of machismo, and continues on only because neither side wants to be seen as the one who backs down.
The White House and the Conservative Right have been in a real dick measuring contest over the qualifications of this new Supreme Court apointee, Harriet Meiers.
The Equator Penis Measuring System (EPMS) is the system that gives an approximation of one's penis size. Generally speaking, the closer you live to the Ecuador, the larger your penis is. For example, Africans and Latin Americans living on the equator will have penises measuring around 11 or 12 inches hard, while the English and Scottish living up north have penises measuring 3 inches flaccid, or up to 5 inches hard. There are also intermediate points. Italians, for example, have penises about 6 inches flaccid, and 8 inches hard.
When people obsessively compare themselves to each other to see who is 'the best' or 'the biggest'. It may or may not involve actual penises, but it can. Usually the things being compared are worthless and meaningless things like income, car size, house size, job performance, sports stats, partner attractiveness, and yes, of course, penis sizes.
They're all bragging about how big their cars are versus the other guy's car, they're just engaging in a useless dick measuring contest.
While our lifespan is the number of years we will live, our healthspan is the number of healthy years we will have and our sexspan is is the number of years we will continue to be healthy enough to continue having an active sex life.
A lighthearted reaction upon receiving disappointing news of some sort. Usually something that isn't a particularly a big deal, esp. when it primarily affects someone else - sort of a mild schadenfreude. Sometimes doubled or tripled, and possibly said in a sing-songy voice for added comedic effect to imitate a muted trumpet, which is how the meme originated.