Well, reading this amusing thread, I am left wondering just what PD said in his interview (not being a DWM subscriber, nor having access to a UK newsagent, I am unlikely to find out). I am also left wondering which is, in this day and age, considered more offensive: "plonker" or "prat".
As for "Get over it!", as said by a Brexit triumphalist to a Remain pessimist, that is likely to cause more offence and raise more ire than either of the two p-words above.
The other one is the d-word: "democracy", when used to justify a situation in which 26.7% of the whole population of a country vote for a measure which will adversely affect 100% thereof, which vote is then carried, and hailed as a great result. It ignores the fact that many members of the said whole population were disenfranchised, despite being amongst those most adversely affected. It is for such reasons that phrases such as "Get over it!" or "whinging Remainers" will scarcely mollify Remainers, let alone guide them to an insight that the future outside the EU is great (mainly because it isn't - ask the Northern Irish, the Scots, or especially Gibraltans (over 90% of whom voted Remain) , and try to convince them of the wonders of Brexit).