One who doesn't : cheat, lie, talk to people there not supposed to,go behind your back or pick someone else before you

to sport a boner, fly the sail at full mass, rock hard, etc.

These are the people you can trust to have your back all the time, you can close both eyes when sleeping and they got you covered or turn your back on them after handing 'em a knife or gun and not have to worry they will be tempted to use it on you. They will never abandon you.

Somethin y’all don’t know how to be nowadays

Loyal is when you can trust someone. its when you trust a person that doesn't lie, disrespect, cheat, betray or attack. you do what you're told to do and you're a follower and you trust good people to be your allies and friends. a loyal person would say "yes sir and yes ma'am" and a loyal person would say respectful things and are very disciplined and honest. someone who makes acceptable promises and keeps your promise. a Loyal person shows honesty, care and respect for a person and he wants to stick together and help you. a loyal person is trustful and honest always. and a person who really cares.

Mercy
Trustworthy af; good person

Faithful to a person or a cause; firmly in alliance to somebody or something. Always there for somebody when they need you.