lameo [LAY-moh]- pejorative term for someone uncool that all the cool kids are using. If you call someone a lameo, the cool kids will see how cool you are and accept you into their ranks. "Safety is for lameos"
land bridge theory- an obsolete theory that there used to be isthmi
last straw- an instance of a repeat offense that happens when you're in a bad mood
law of excluded middle- a rule in logic that things must fall into category A or C, never B
leprotic- having, characterized by, contaminated with, or otherwise related to the disease leprosy- used only in discussions about the disease leprosy. "Leprotic outbreaks"
leprous- having, characterized by, contaminated with, or otherwise related to the disease leprosy- used in contexts other than discussions about the disease leprosy. "The priest cured the leprous house"
levee- an emergency dam
libelle- a genre of political cartoon that flourished during the prelude to the French Revolution. Historians often consider it scathing satire when in fact it is drawings of political figures masturbating as if that were a point. While the term is historical, the spirit lives on whenever someone says Trump has a small penis.
licorice- a type of candy that is either unpalatable or made of sugar
live in the moment- to behave under the knowledge that you could be taken out by a drone strike ten seconds from now, so it's no use waiting for anything ever.
locker- a safe made by someone who didn't really care how secure it is
literally- thing said after a pun to make sure we noticed it, but we already did. Very clever, "up your sleeve", but it's not all that subtle.
look up- to perform cursory research about
love at first sight- a relationship based entirely on immediately observable physical characteristics
love potion- an aphrodisiac given to someone else to override their romantic will
love triangle- a love-shape comprised of line segments AB and CB, but not AC
love with life is heaven and life unloving, hell (proverb)- you have GOT to try this love stuff
low-cut (adjective)- of clothing, having a low cut, like this, but not like this for some reason
lowlife- one who is pitiably despicable
lulz- nefarious ends
lumber- to waddle in slo-mo
lurid- enthrallingly off-putting
luxury (adjective)- expensive, and therefore worth buying
lynch mob- a group of people that gangs up on someone, kills them, and then just kinda awkwardly dissipates.