The act of loading a webpage with a video on it allowing the video to buffer knowing full well that you do not intent to watch the video at the present time. But instead keeping the webpage open and watching later when it may be more convenient for you. A pre-buffer is also used to make sure the video is fully loaded when you wish to wash it.
The user can also disconnect from the internet and will still be able to watch the video due to the pre-buffer.
buddy: have you got any decent films we can watch?
guy: erm nah not really but i pre-buffered the hangover on the internet this morning if you wanna watch that
buddy: yeah sounds like a plan, good old pre-buffer
bob: you wanna go out jim?
jim: ok let me just pre-buffer space chimps for the kids n i'll pick you up
In poker when both players are all in and the worse player also with a bad hand gets lucky and beats the skilled player with the better hand. But then the player that originally had the best hand improves his hand in a way that beats the other guys lucky hand.
I turned over top two pair and the idiot turned over a 9 high flush draw. Then the lucky donk sucked out on me and hit his flush on the turn, but luckily i Re sucked on him and made a full house on the river, haha serves him right.