In the poker variant of Texas Hold 'em, Dog Balls refers to holding pocket 8's (two 8's) as your hole cards. Superstitiously viewed as an unusually difficult hand to crack(beat).
when your nuts get behind your thighs on the butthole side when your legs are closed. kinda of like "the brain" but instead of using your hand your legs are doing the work. very inconvenient when you sit down or someone hits you from behind.
As noted by the U.S. Navy SEALS, when the leadership has left them "hanging out there like DOG BALLS", exposed and to their own devices.
"The best example would be when the government abandoned the four Americans at the Benghazi, Libya compound, by not sending any help. They left the four hanging out like dog balls."
By Diane-Marie
Dog Balls
When a male person puts his testicles between his legs and thus allowing them to stick out the back.
Hey bitch, have you ever seen a set of "Dog Balls"? Oh you have? Well have you ever seen a set like this? (At that time you proceed to force your nutts between your legs and show your partner) Ohhh, those dog balls! She will love them and lick them.