Here’s what happened: I must’ve pulled out the plug kinda weird, or too fast or
something - and the little tiny yellow piece that you’d normally see “protuding”
from a PSP USB-Charger Plug (the ones from GameStop ) – is now stuck in my PSP’s DC
IN jack. 
:(:(:(
Any suggestions on how to pull it out, or - as a last resort - open up the PSP
itself somehow and see if I can pull it out that way, or even REPLACE the DC IN
Jack? (which i woudlnt even do myself…I’d have someone else do it.)
Chris here…
Even though I’m a PSP user myself, I must admit I’ve yet to encounter this problem and have no clue how to deal with this painful-sounding problem - you have my sympathies!
My best suggestion would be to head over to www.yourpsp.com, which I believe redirects to the official website for all the Playstation consoles - there should be a PSP forum linked on there, where you might be able to ask this question of a bunch of hardened PSP addicts! 
Hope that (sort-of!) helps! Good luck getting it sorted!
Take care…