The materials (generally metals but also parts such as gears, springs, screws, electronics,
woods etc) used in manufactoring products made in
China. Which vary in performance/quality due to disreputable
quality control. Which in turn, leads to the same products potentially being different, and in rare cases, even dodgy.
"I don't understand! We have the exact same gel blasters, why is yours better than mine?"
"Chinesium Alloy mate."
"
Fucking budget cuts!"
- Two Aussies in a backyard in Queensland.
"I didn't trust guitars made in
china 10 years ago, Chinesium alloy was a major factor back then. Good thing it's changed now."
"This circuit board
fried to the shithouse. Hmm. Must be the chinesium alloy."