To dalloway, is to completely fail at a task, resulting in a comedic circumstance. The term is best used in football; when kicking a ball and falling over, hitting a less prefered target, or just kicking it into the air. People tend to laugh at and mock those who dallaway.
Dalloway is also a term for premature ejaculation is vast quantity.
A Dalloway is a person who does either one or both of these things regularly.
Dude, i was about to take the shot but i completely dallowayed it.
It was so embarrasing, i dallowayed all over myself, everyone was watching.
You see that guy over there? Yeah, he's one of those Dalloways.