sit back

verb
1.
(intransitive, adverb) to relax, as when action should be taken: many people just sit back and ignore the problems of today
Idioms and Phrases with sit back

sit back

.
Relax, as in Now that the work's finished, we can just sit back.
.
Refrain from interfering or taking part, as in Mom and Dad just sat back and watched Meg try to decide whether or not she should tell on her friends. [ Mid-1900s ]
Also see: sit by