Recently came across an article that mentioned this one:
There were four Sycamores, and they all had registrations (more or less) related to fire fighting: D-HEMD (shirt), D-HOSE (trousers), D-HELM (helmet) and D-HAHN (spigot).
May have been posted before
Can anyone explain how these registrations get past the national CAAs?
Many years ago, a friend had SX-BUM (pictured early on here somewhere) and explained that in Greek “BUM” means “bang”, not your rear end 
G-SPOT (destroyed many years ago, and in the UK CAA system cannot be re-used) was allocated before the term gained wide publicity.
We used to have an aircraft based here G-MRST.
The Brits thought that French pilots used to find it funny because the original owner had perhaps been a proud Mrs Thatcher supporter when in fact what we found funny was that in France this is an acronym for a sexually transmitted disease.
Peter wrote:
Can anyone explain how these registrations get past the national CAAs?
Any letter combination which is pronounceable is reasonably likely to mean something nasty in some language. Lots of examples…
At Cannes yesterday saw G-OPFR. No idea what the owner thinks it means, but it made me think of “Opfer muessen gebracht werden” (“Sacrifices must be made” or more literally “victims must be found”), Otto Lilienthal’s dying words after he discovered the stall.
At EGHF yesterday
Like most funny regs, horrible one to read out over the radio.
