A common phrase used by the highly intellectual and wealthy in the old ages, which has been lost betwixt time. A transcendent expression commonly used when something of utmost hilarity occurs amongst us.
It's one of those jokes that's so funny it sort of gives you a slight boner. Like the first time you heard "jizz in my pants", you were so entertained by it that you sort of got a mind boner - just a very pleasant feeling.
It's also going the extra mile to proclaim love for a joke. Usually people just caps-lock lmao to show their love. This really goes the extra effort - it's 4 extra letters. Plus, it's a ridiculous image when you literally think about it.
A sunburn or suntan focused on the left arm. It is caused by the left side of the body being the only half that gets exposed to sunlight while driving. Presumably, it would be located on the right side of the body in countries where they drive on the left side of the road.