1. a loss
2. loser, usually shown with a hand signal making the letter 'L' with the thumb and index finger and putting it to your forehead.
1. "Did the Cowboys win last night?" "Nah, they took an L"
2. Person1: "There goes Brian"
Person2: *makes the letter L with his hand and puts it to his forehead*
Person1: "Nah, he's not that bad."
Person2: "That's a double L for you"