A shitty low end CPU made by AMD. Considered a great CPU line back in 2004 for gaming, but AMD decided to not get up off their ass and actually improve their once great CPU.
Joe: What CPU do you have in your rig? I hope it's good.
Dope: Durrrr, a Sempron.
Joe: *Jumps off a cliff*
The last name of composer Alberto Semprini. Used by the show Monty Python's Flying Circus as a vulgar word that would not be said ever again on the program. Although the composer has been all but forgotten, the word is now easily recognizable by fans of Monty Python.
(adj.) making use of irony partly for the purpose of disguising some genuine interest or affection; using irony to explain a guilty pleasure or a nostalgic attachment
Person 1: Why are you wearing that Power Rangers shirt?
Person 2: Well, at first it was supposed to be ironic, but I actually like the shirt now, so I guess it's only semironic.
Person 1: Oh. That almost makes sense.
As said by the character on Monty Python, a horrible word that will never be said again on the show. The word is derived from the composer Alberto Semprini, but joking portrayed on the show as a "taboo" word.