What I'd call a # Hidden text
hash sign
Americans mostly call # Hidden text
pound
Though in C♯ Hidden text
sharp
To look like ## Hidden text
octothorps
And would # Hidden text
hex
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∫ dcabin/cabin = log cabin.
A mathematician named Klein
Thought the Möbius band was divine
He said "If you glue
The edges of two
You get a weird bottle like mine."
(Leo Moser)
A smelly, stub filled old ashtray.
Badly kept Greene King IPA.
Grim, pinched-face psychosis.
Severe halitosis.
That's Faragery in the UK.