You most likely missed it if you blinked, but before Princess Eugenie and Jack Brooksbank's wedding started, her mum Sarah Ferguson was totally goofing around.

Princess Eugenie Of York Marries Mr. Jack Brooksbankpinterest
WPA Pool//Getty Images

Minutes prior to the ceremony, the Duchess of York took her seat in the front row next to her daughter, Princess Beatrice, and her ex-husband, Prince Andrew. For her daughter's big day, the Duchess opted for a bright green dress by local Windsor company Emma Louise Design and paired it with a matching hat, and a vintage Manolo Blahnik bag.

As the Duchess got situated in her seat, Fergie was caught on camera waving at someone from across St. George's Chapel. But this was no ordinary wave — this wave was definitely intended to be funny (and it was!).

What to read next

A closer look:

Because Twitter misses NOTHING, royal fans immediately erupted over the hilarious exchange.

Oh, Fergie.