A term used to define the act of smoking cannabis. It comes from the words Billy which means bong and sesh which means to smoke weed out of a bong. However, this may be referred to as a euphemism in order to disguise the act. This can be done by referring to the phrase as the friends Billy and sesh.
Degenerate : “ let’s go meet up with Billy and sesh”
Other degenerate : “yes I would like to meet up with Billy and sesh so we can get absolutely fucking planetary stoned and eat kfc with utter bliss and enjoyment”
Other degenerate : “yes I would like to meet up with Billy and sesh so we can get absolutely fucking planetary stoned and eat kfc with utter bliss and enjoyment”
by Ketlord August 3, 2022
Get the Billy and seshmug. An event or tradition in which a person or a group of people participate in gathering fresh, "wild" berries from a bush or tree in a public and private place. Grazing applies to fruits as well. It is also considered a sacred past time for ents, and originated from Saratoga, CA in the summer of 2012, by SHS class of 2011.
Person 1: "Anybody want to going me in a quick grazing sesh? The blackberries are so ripe today that they are falling off!"
rest of group: "Yeah, I'm so down for some free grub!"
rest of group: "Yeah, I'm so down for some free grub!"
by dudewithnopants July 8, 2012
Get the grazing seshmug. "Mate what's wrong with you?" - Phillip
"Bro I have post-sesh syndrome I can't move" - Gary
"Mad night then" - Phillip
"Bro I have post-sesh syndrome I can't move" - Gary
"Mad night then" - Phillip
by TypicalChav August 17, 2020
Get the post-sesh syndromemug. 
by DIavarium July 2, 2024
Get the flicker goon seshmug. You will be in a simp sesh if it’s over 2 hours and leave the boys for over 2 hours. If this lasts during September and/or over 1 day streight then you are a big simp and you are foolish (Aidan S)
by MaxTheSimpProtector September 12, 2020
Get the Simp Seshmug.