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20/10/2015 09:50 BST | Updated 20/10/2015 10:59 BST

Keith Lemon Just Dropped The F-Bomb On ‘This Morning' During ‘Back To the Future' Tribute (VIDEO)

If you’re going to invite Keith Lemon onto your show then you can’t really expect him to behave, as Phillip Schofield and Amanda Holden found out during Tuesday’s ‘This Morning’.

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The ‘Celebrity Juice’ host was on the live ITV show to promote his ‘Back To The Future’ tribute show when he dropped the F-bomb.

While explaining the theory of time travel, Keith meant to say (we think) 'flux', but the similar swear popped out of his mouth instead.

Cue raised eyebrows from Phil and Mandy.

this morning

“[Phil] won’t let me have a go [in the DeLorean], I just want to have a go at t’flux,” Keith told Amanda.

“What is that?” asked Amanda.

“It’s what makes time travel possible, for f**ks sake!’ Keith yelled back.

Despite Keith claiming that he’d actually said ‘flux’, we all knew what we really heard.

Naughty Keith.

Watch Keith drop the F-bomb in the video above (and then see him try - and fail - to convince us otherwise)

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