To dream of a machine gun represents decision making that is decimating or wipes out everything in it's way. The power to influence or completely remove all obstacles at once.You or someone else that is cutting down everything in their way.
Something you used to be obsessed with or work hard at that isn't as interested as it used to be.
Example: A woman dreamed of a thought control machine reading her mind and informing police about it.
Alternatively, Macgyver may reflect qualities of the personality that are thrifty, witty, or clever in situations that feel emotionally dangerous.
Example: A woman dreamed of being very attracted her Mac Gyver. Consider who or what is being attacked bu the machete for additional symbolism. In waking life he was very interested in getting revenge on a friend that was unfaithful him.
Example 3: A woman dreamed of chopping up an anaconda snake with a machete.