I can think of two that are prevalent right now: "Not your grandmother's (father's, sister's, accountant's) soup!" The implication seems to be that all that came before is fusty and unworthy of us BlackBerry-toting types. An example appears in today's NYT. The second, which I find hilariously condescending, is the ubiquitous "Think." As in "Liquid? Think: water!" Lazy writing on both counts.
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