Theresa May's awkward curtsy strikes again

British Prime Minister Theresa May has again made an embarrassing hash of the curtsy when meeting a member of the Royal Family.

Theresa May has done it again, executing an awkward curtsy for a member of the Royal Family. Source: AAP

British Prime Minister Theresa May has hit the headlines again for the curtsy she rolls out for members of the Royal Family.

Instead of an elegant bob, May's curtsy looks more like a crooked lunge, leaving the Duke of Cambridge a little nonplussed at Amiens Cathedral in northren France on Thursday.

July 2016: Queen Elizabeth II welcomes Theresa May at the start of an audience in Buckingham Palace. Source: AAP

In June, May treated William to a similar display at a ceremony at the Defence and National Rehabilitation Centre with her long legs splayed out awkwardly.

According to English etiquette bible Debrett's, women should curtsy when being introduced to a member of the Royal Family, then again when they leave.

It states, "To make a curtsy briefly bend your knees with one foot forward", a movement the PM seems to struggle with.

May 2012: Joan Collins curtsying as she meets Queen Elizabeth II during a Diamond Jubilee celebration. Source: AAP

May is not the first politician to over-egg her curtsy. Margaret Thatcher habitually dipped almost to a crouching position while greeting the Queen.

Former Australian prime minister and staunch republican Julia Gillard decided to swerve the curtsy altogether when she met the Queen in 2011, shocking protocol experts by opting for a swift bob of the head and a handshake.

Men get off lightly when it comes to royal protocol and are merely required to bow.