Acronym for "Let's make it happen", which means what you think it means. However, it usually does not happen. Commonly used in Silicon Valley by overly energetic and undersexed young professionals.
Even though Daniel's friends were all hungover and tired, he wanted to go clubbing in the Castro district, so he kept shouting, "LMIH LMIH LMIH!"
Nickname given to bales of marijuana thrown overboard or out of airplanes. Origin is reportedly from members of the US Coast Guard in the area of Southern Florida.
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.
I had a trucker's tan after driving for 10 straight hours on a sunny day.