Double dipping is a term that can refer to different things depending on the context. Here are some of the most common meanings:

• Food: Double dipping in the context of food refers to the act of dipping a chip or other snack into a shared dipping sauce or mixture after taking a bite from it. This practice is often considered rude or unhygienic, as it can transfer bacteria from the mouth to the communal bowl of dip.

• Economics: Double dipping in economics can refer to two different practices. One is the release of multiple special editions of a media product to consumers, which can be seen as a way of getting illegitimate compensation a second time for the same activity. The other is the practice of being compensated from two mutually exclusive sources, such as receiving income from a government pension and a government salary at the same time.

• Other: Double dipping can also refer to other things, such as a "lifeline" in the Who Wants to Be a Millionaire? franchise, a downward portion of a "hill" which is divided into two separate drops in roller coaster design, or a metaphor for circular analysis in statistics.

In summary, double dipping can refer to different practices depending on the context, but it generally involves taking something twice or repeating an action that is considered inappropriate or unhygienic.