Top Definition
Getting extremely intoxicated (mainly from cannabis) and staying up to early hours of the morning researching aliens and/or conspiracy theories.
Patrick: "I had a pretty decent Tomsu sesh last night... stayed up until about 5am smoking weed and reading about the Roswell crash"

Guy: "Ah nice one bro, haven't had a Tomsu sesh in a few days"

Patrick: "Let down, if you were hardcore you'd be doing it everyday"

Guy "Jog on mate"
by Jonathan Darkko July 21, 2013

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