A joke often used in the YouTube comments section, in which someone says "I switched to porn when my mom walked in, it's easier to explain."
People who use this joke think they are calling the video weird in a funny or original way, when in reality it's been plastered all over YouTube thousands of times. Someone who says this is often referred to as a faggot.
Person A: "Lol, this video is so weird I switched to porn when my mom walked in, it's easier to explain!"
Person B: "This joke has been viewed thousands of times and as such has been rendered completely humorless. I imagine even the dumbass that came up with the joke is weeping right now."
Losing a considerable lead in a footrace as a result of being slower than an opponent.
Commonly seen in football when a slower back breaks into the open for an apparent touchdown, only to be caught up to and tackled by a speedier defensive back. Also seen in later legs of track relays.