full gig
a full erection of the male genitalia.
"I woke up in the middle of the night with the urge to take a wicked piss, but the combination of grogginess, poor lighting and a full gig made it a messy ordeal."
"The bitch up and walked out, leaving me there with a full gig."
"The bitch up and walked out, leaving me there with a full gig."