UK slang: "I've got nothing." or "Nothing came of it."
I think it comes from something like 'couldn't even get a drink at the pub, just left with some stolen mustard pacs'.
Did you get the (job/girl/money/news)?... Nah; "pocketful of mustard."
When a large group of friends meet up and play Pokemon and talk about items, and badges and many things associated with Pokemon and of course, battling. it's usually really pathetic and whoever is friends with someone that pokefucks HATES the PokeFucker. this doesn't include average Pokemon players that play for entertainment, it only involves people that need to get a life outside of the pokemon regions.
Sean: "Hey, have you seen Robert and Adrian?"
Maggie: "no, but i could tell you where they are, they're in Robert's room PokeFucking with Diego, Joseph, and Ashley"
Sean "Figures, PokeFuckers"
A pocket full of drugs of some type, typically weed, or some other type, since hippies associate themselves with the sun for some reason.
"Hey Bob, that football captain guy is sooo hot that I get a pocketful of sunshine when I see him."
"what? You get a pocketful of drugs from him?"
"No, he just makes me sooo hot..."
"Where'd you get that definition? From that first definition of pocketful of sunshine that retard made?