Wembley is one of the characters in Fraggles. He's known to be very indecisive. Wemble is a Fraggle verb and means not being able to decide.
Girl: Would you like pizza or the big salad?
Guy: I don't know. Pizza is tasty, but then again, salad is healthy. I'm hungry, so pizza would be nice. But the salad looks great. Maybe I'll take the salad then. Uh, but I would really like the pizza...
Girl: Don't wemble like a moron. Come on, what do you want?
DA BEST GAWK GAWK YOU WILL EVER RECEIVE IN A LIFETIME, YOU WONT BE ABLE TO WALK FOR THE REST OF YOUR LIFETIME AFTER THIS AND YOUR SOUL WILL BE SENT TO HEAVEN IF DONE CORRECTLY
Dave: Yo my homeboy, you want the the mary poppings supercalifragilisticexpialidocious gawk gawk vacuum chamber quadruple hand twist ushy bushy gushy sloppy toppy boppy naughty gorilla grip fade tsunami volcano eruption of semen soul snatcher combo wombo mumbo 3000?
William: No daddy, im not ready to die, im still a child
A combination of attacks in a video game that is so perfectly timed that it cannot be escaped or avoided, taking the competition to complete defeat in seconds. It originally came from a Super Smash Bros tournament Youtube vid.