This is not a SFW instance. NSFW communities will be tagged, and efforts will be made to keep SFW communities clean, but proceed at your own comfort level.
Units are meant to be cross-language. If you want stupid units and ad-hoc abbreviations, use the imperial system. They have PSI (lbf/in²) and mph (mi/h), where one has “p” for reciprocity (“/”) and another nothing. And imagine the chaos if other languages used imperial units and abbreviated them: see Wikidata for inch, including 100+ language versions
Units are meant to be cross-language. If you want stupid units and ad-hoc abbreviations, use the imperial system. They have PSI (lbf/in²) and mph (mi/h), where one has “p” for reciprocity (“/”) and another nothing. And imagine the chaos if other languages used imperial units and abbreviated them: see Wikidata for inch, including 100+ language versions