Saturday Night Takeaway viewers are obsessed over Dorothy during her appearance on Ant and Dec's security pranks.

People could not get enough of the sweet foul-mouthed elderly lady who was victim to the ITV show's prank segment.

Fans enjoyed watching the clueless participants jump through hoops on 'Takeaway Security' as the presenting duo giggled behind the scenes.

But one participant stole the show and viewers took to social media to share their love for her.

When asked to put her bag on the conveyor belt , Dorothy bluntly responded: "You're having a laugh".

And viewers were then left in hysterics when her belongings disappeared and she exclaimed;""Where's my b***** handbag?"

Taking to Twitter, one fan wrote: "Oh my days. I haven’t laughed that much in AGES!!! That ant and dec O2 security prank was absolutely brilliant. B***** love Dorothy".

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A second fan commented:"Hahaha OMG @antanddec this O2 security gag has to be one of the funniest yet….!!! 
I have literally LMAO…!!! Garry, Barry Larry was not impressed….
#comebackgarry 
I can’t believe Jason actually sat on the conveyor belt….
I LOVED Dorothy…WHAT…? "

A third added:" Dorothy just became a national treasure!"

Ant and Dec’s Saturday Night Takeaway airs on Saturdays at 7pm on ITV.