It's 'Budapest Liszt Ferenc Nemzetközi Repülőtér' (Budapest Ferenc Liszt International Airport) and called 'Ferihegy' by locals as that's the place it is in Budapest, and the pre-2011 disambiguation with smaller airfields around the city. The code is indeed BUD, but Budapest has always been in the name.
But this is off-topic, as the point name on F4 for the airport is a road name.