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.

A pick me is a woman that is willing to do anything for male approval. She will embarrass or throw other women under the bus to achieve this goal. The unfortunate thing about a pick me is usually the men they are trying to seek approval from are of poor quality and treat women badly, leaving little real benefit for the pick me.

This is a sexual practice maintained by homosexuals in which one male's ejaculatory fluid (semen, spunk, cum, jizz, sperm, load) is used as lubrication on another man's penis. This method of lubrication may then be utilized to allow aid in penetrative anal sex, or simply to enhance hand relief (wank, handjob)

While more commonly practiced than most hetrosexuals would imagine by the general homosexual public, the act of gluegunning can also be seen in many gay pornographic workings.