mad chips 

extremely bad or mediocre, basically it absolutely sucks

That team we played yesterday was mad chips, they absolutely sucked.

mad chips by mfreshh23 April 10, 2010

as mad as a bottle of chips 

Someone or something being completely random or non-nonsensical.

£4 for a pint of Guinness?!!? That's as mad as a bottle of chips!

as mad as a bottle of chips by Aaron Stevenson May 14, 2008