A "glue gun" sticks two things together.
"Glue-gunning" means "to use a glue gun.
"Love" "glue-gunning" means to use a figurative glue gun to stick two people together,
or at least specific parts of their anatomy.

The best type of gun. Gun that creates and fixes things is best type of gun. You could try to rob a bank with a glue gun - it’s never been done so it will work for

It’s hot, sticky, stringy, gooing -fun.

a male penis which spurts out the white wood glue

this only happens when chronic masterbation takes place. your penis melts into a substance that resembles pureed llama fetuses.

When a man has a one man party in a toilet stall preferably of the opposite sex and ejaculates onto the seat of the toilet. The next person using this particular toilet will be glued in a grotesque manner to the seat of the toilet... This can or cannot be used in combination with the upper decker. If used in combination with the upper decker this is known as the Tennessee two timer.

When you are having sex with a girl without protection and you pull out too late and create a long thin piece of cum that resembles a hot glue gun.

a penis. basically is a gun (penis) with love glue inside (semen)