Chris Elliot guest stars as Lily's estranged father, Mickey. Might he get to use Marshall's final slap on Barney?
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Marshall holds Barney down as Ted goes in to slap Barney. Will Ted get to use the final slap?
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Ted holds Robin back and she goes in to slap a laughing Barney. Will Robin get to use one of Marshall's remaining slaps?
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Wait, will the official slap bet commissioner, Lily, get a chance to use one of Marshall's slaps on Barney?
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Ted looks like he's giving a serious lecture to Lily's father during How I Met Your Mother's Thanksgiving episode.
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A picture of Lily with her estranged father, Mickey (Chris Elliott), who she's been reunited with on Thanksgiving.
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A picture of Chris Elliott in his upcoming role as Lily's estranged father, Mickey. Here he is macking it with a woman as Marshall walks in on him.
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Marshall and his estranged father-in-law, Mickey (Chris Elliott) are just trying to have a nice Thanksgiving together.
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Chris Elliott guest stars on How I Met Your Mother as Lily's estranged father, Mickey, and comes by for Thanksgiving.
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Barney gets upset when the slap bet returns and Marshall's remaining two slaps are award to Ted and Robin.
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How I Met Your Mother Season 5 Episode 9 Quotes

Ted: Robin, you should get the slap, you're a great slapper. In fact, I want to study slapping under your tutelage. I want to be your slaprentice.
Robin: Don't sell yourself short there, Teddy, you're a slapping rock star. Your name should be Eric Slapton.

Robin: You only have one slap left are you sure you want to use it today?
Marshall: I figured life is short, slape diem.