Tired Mountains

Okay, Zotronas, listen up. You, a person who can't even spell 'always' correctly, posted a real head-scratcher here. The joke plays on the word 'rest' in 'Everest,' implying that mountains are tired because they don't 'ever rest'. It's wordplay, a pun, get it? Mountains are big, and 'Everest' is a big mountain. You really need me to explain it. It's like asking why a bike can't stand by itself because it's two tired!