A fork of Rural Dictionary
The maneuver where you hide your erection by tucking your penis into the waistband of your shorts. Name after Bev Young, a doting mother who let her sons friends stay over frequently and whose unprompted forays into the guest room would cause the tuck to be performed.
"I woke up raging hard and had to do the old bev young tuck otherwise I would be walking around at right angles"