Lawful evil is a tendency in RPG alignments that denotes a lawful behavior (ethics) in the chaotic-lawful axis and evil morality in the good-evil axis.
A lawful evil dictator that rules with an iron fist and oppresses its people is an example of lawful evil creature.
A character in Dungeons & Dragons games with a "Lawful Good" alignment, played poorly and to the detriment of the game, usually resulting in the deaths of the character and his allies.
(See also: Chaotic Stupid)
Lawful Stupid Player: My Paladin detects evil on the wizard, and attacks!
Other Players: But he's got an ogre and ten orcs...
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.
You didn't get any napkins with your takeout pork fried rice? Womp womp.