I will try to explain the jargon, which is the hardest part of getting up to speed with astrology. We have an unfortunate tendency to write in jargon, forgetting that it just sounds like turkeygobbles to many of you.
FM stands for Full Moon. The full Moon illuminates the dark landscape around us at night, and let's us see things a bit more clearly. There is a cycle to the Moon, from new to full, then back down to new again.
So, when we say that the full moon hits Ron's Mars and Venus, we mean that these two planets in his natal chart are being illuminated/highlighted/stressed by this Moon, and if you understand that when the Moon is full, it is actually opposing the Sun, so by opposition, the Sun is also involved in the transit to Ron's Mars and Venus.
So, what does that actually mean will happen? That is what most newcomers to astrology will want to know, and they are hoping for something specific. That is where some astrologers make mistakes. We have no way to know anything specific with astrology.
All we can say is that it is time for something (we know not exactly what) to happen. Whatever it will be has something to do with Ron's Mars (energy/anger/action/temper/irritability/impulsiveness/urge to criticize) and...
Ron's Venus (love/art/money/young woman/sweetheart/mistress/moral sense/things he values)
So, we can conclude that Ron might be very critical of Misty, might lose his temper with her or some other young woman, have a fight over money, or pay more money to get another tattoo?. Tattoos are done with sharp instruments, and some consider them a work of art. But, since he just had one, doubt that this is likely.
When looking at a transit to a natal chart, we do not take one in isolation, as I did above, but we have to consider other transits happening around the same time, as these will give more information.
So, the Mercury transit to Ron's Chiron gives us that. Mercury rules words/news/neighborhood/hands/intellect/dexterity, and Chiron is considered symbolic of "wounding or the wounded healer". The orb to Uranus is kind of wide the way I work, but if it is active, we might expect some sudden speech critical of Misty, or an argument with her over money, something going on in the neighborhood, etc...
We make up sentences this way, but we are smart to wait and see what we hear on the news (Mercury) or TV (Uranus) to see what exactly happens to fit the energies shown by the transits to the chart...