Ironic, negative or surprising consequence/fact or
Catch-22. Unexpected result.
Usually follows a positive statement. Used as
bridging statement for dramatic effect, to a negative consequence/statement.
Probably stems from the phrase "you'll be kicking yourself for this one"
Sure, renting an apartment is cheaper and gives you a lot of flexibility to move around, but here's the kicker: with the money threw away renting places for 5-10 years you could have been
well into a mortgage and have built up some
personal equity, and credit.