Pepsi adjective sexually frigid. Presumably because Pepsi™ is 'best served chilled' UK, 2001
Pepsi; pepper noun a French-Canadian. Originally directed as an insult, because it was said by anglophones that French-Canadians chose Pepsi over Coca-Cola because they thought the cans were larger, it has been adopted as a badge of pride, especially in the derived form 'pepper' CANADA, 1978
Pepsi habit; Pepsi Cola habit noun the occasional use of a drug, short of an all-out addiction US, 1970