Definition of «to break the suction»

The phrase "to break the suction" means to separate or release something that is stuck or tightly attached to something else.

You may need to break the suction by inserting a finger. (breastfeedingtoday-llli.org)
Gently break suction with clean finger inserted in the corner of baby's mouth before removing baby from the breast. (breastfeeding.asn.au)
By gently placing your finger into the side of your baby's mouth, you can safely break the suction of the latch. (verywellfamily.com)
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