Definition---
An assembly with which to celebrate students ‘achievements’ such as birthdays. –held every Friday afternoon- similar to Mass, but is hosted by a manwho regards himself on par with God like stature, along with a long-haired Science co-ordinator, who, funnily enough, is a bitch; an assembly in which a regimented clap is allowed for a controlled burst of time.
Example---
HT: So let’s have on e round of a happy birthday rendition.
{Terrible piano playing ensues, coupled with the vocals to ‘Happy Birthday’ from children… followed by clapping.}
HT: Right! Nathan! You can go sit outside my office, there was no need for that extra-clap of an outburst.
Teacher: Once again, an excellent and most celebratory, ‘Celebratory’ Assembly
At the climax of sexual intercourse the male tactically rests and nestles his phallus in between the buttocks of his partner. This is typically a follow up to the "doggy-style" position. Furthermore the ejaculate shoots at maximum velocity onto said partners back and/or hair.
This immaculate assembly received its name due to its strong visual resemblance to the great Gustav Cannon developed in the late 1930s by none other than the Krupp family.
ex. 1 -
'Jonathan assembled the Gustav with such pride, he watched in awe as fertilizer emitted from his cannon; showering his partner's posterior in warm viscous bliss.'
ex. 2 -
"Where's Sean....?"
"That slick bastard is up in his bunk assembling the Gustav again."
Running into a man and dropping your things as a result. Mark Sanchez is prone to assfumbling, but an assfumble can happen on the street. Walking into a man and dropping your bag or running towards the line of scrimmage and hitting your offensive linemanin the ass, fumbilng.
Football Example: Mark Sanchez has the ball, he makes contact with his lineman, assfumble! Patriots have the ball! Patriots have the ball!
Everyday example: Man, I was walking to the store when I ran into a guy and totally assfumbled my phone.