Here are some examples of how it might be used:
* "En la vida es comsi comsa, si quieres que te ayuden, también debes ayudar a los demás." (In life, it's give and take, if you want others to help you, you must also help others.)
* "No seas tan comsi comsa, si te hace un favor, no esperes que te lo devuelva inmediatamente." (Don't be so tit for tat, if someone does you a favor, don't expect them to return it immediately.)
The phrase emphasizes the importance of balance and mutual respect in relationships. It can also be used to describe situations where both parties benefit from an exchange, even if it's not always perfectly equal.