To tommen something is to ejaculate semen onto something.
Semen 2.
"Ah fuck! I just tommened my couch!"
An adjective to describe something of such low effort and low quality, you call it Tommen's Beard.
This is in reference to the TV show the Acolyte, in which the actor who played King Tommen in Game of Thrones plays a Jedi with a horrible looking, glue-on beard.
"That entire show was Tommen's Beard."
"Zoomer hairstyles are all so Tommen's Beard."
"Those truck mods are Tommen's Beard."