1. To hastily leave or sneak away from some place. Often followed by "of (some place)." The man skipped out of town as soon as he was released on bail. I should have been working on the report, but I decided to skip out of the office and meet my wife and kids for a long lunch. When the police went to arrest her, they found that she'd skipped out.
2. To abandon or desert someone or something; to leave without honoring some commitment. Typically followed by "on (someone or something)." I can't believe that no-good bum skipped out on his wife and kids! Janet skipped out on the bill, leaving Mary and I to pay for lunch yet again.
skip out (on someone or something)
Fig. to sneak away from someone or some event; to leave someone or an event suddenly or in secret. I heard that Bill skipped out on his wife. I'm not surprised. I thought he should have skipped out long ago.
Leave hastily, abscond, as in They just skipped out of town. It is also put as skip out on, meaning "desert, abandon" as in He skipped out on his wife, leaving her with the four children. [Colloquial; second half of 1800s]
skip out on
To fail to attend something: We skipped out on the lecture and went to a movie instead.
in. to leave; to run away without doing something, such as paying a bill. Fred skipped out, leaving me with the bill.