I've always wondered why people say "plug top" when they're talking about a 13 amp mains plug?
Isn't it just a plug?
A mains plug does indeed have a top I guess - the bit that comes off when you undo the screw - they're not referring to that, but the whole plug!
Then there's the people who call sockets plugs .......!
I think I've been in lockdown too long!