Below the belt and Solar plexus

Below the belt adjective - Disregarding the rules (from the notion of an illegal low blow in boxing).

Solar plexus and below the belt are semantically related In some cases you can use "Solar plexus" instead a noun phrase "Below the belt".

Solar plexus noun - The part of the body between the chest and the pelvis.

Below the belt and solar plexus are semantically related in stomach topic. You can use "Below the belt" instead a noun phrase "Solar plexus", if it concerns topics such as exterior.