LOL! I’m an old lady, and have no idea what xp38 may mean/signify. You’re safe from me :-)
You have heard of Star Wars right? If you want to know it’s from a line Luke says when he sells his landspeeder. The line roughly is “Look at this (in disgust how little he got for his landspeeder) ever since the xp38 came out there’s just no demand”