As a sign of respect; you're calling that person strong, fierce, or brave.

I couldn’t care less (but one must keep up appearances, right?)

li-ons (ly'ohns)
n.

1. The Worst. Football. Team. Ever. (See: Detroit, not British Columbia or Penn State)
2. A large carnivorous feline mammal (Panthera leo) of Africa and northwest India, having a short tawny coat, a tufted tail, and, in the male, a heavy mane around the neck and shoulders.
3. Any of several large wildcats related to or resembling the lion.
4.
1. A very brave person.
2. A person regarded as fierce or savage.
3. A noted person; a celebrity: a literary lion.

Someone who is very forward sexually and is probably the more dominant in a relationship. Can be male or female. Will probably be a very confident person and has experience.

(verb) Running your fingers through your partner's hair durning vigorous making out causing a drastic increase in hair volume; thus causing the hair to take on the appearance of a lion's mane.

a lion is the second largest feline,next to the tiger, they live in africa in the savannah and some live in more wooded areas
Male lions are much larger than female lions but the female lions do all the hunting for that reason, male lions are to big and slow to catch anything besides something slow, and male lions who live in more wooded areas are more likley to hunt for themselves
there are often only 2 adult male lions in a pride and many females with cubs of either gender
lions r very defensive and protective of their prides and usually males will not tolerate outside males and the females will not tolerate outside females
male lions are expelled or leave on their own wen they mature
the new male leaders, after they "dethrone" the past leader, will often kill the remaining cubs

and there is my detailed definition :)

A big, furry brown cat, found in the savvanna of Africa. NOT the jungle, you phyco's. Often toated as the king of beasts, and no one knows why. Some say that the lion is the biggest cat, even though the tiger is the biggest cat in the world. Often hunted for trophies.