Adam Lambert says a combination of jetlag, vodka and “irrational confusion” led to a blowout with Finnish boyfriend Sauli Koskinen that ended with the duo spending  a brief stint in a Finnish jail Thursday.

“Jetlag+Vodka=blackout. Us÷blackout=irrational confusion. jail+guilt+press=lesson learned. Sauli+Adam+hangover burgers= laughing bout it. :)” Lambert tweetedThursday after spending a few hours in a Helsinki lockup.

Translated, that means Lambert and boyfriend Sauli Koskinen — a Finnish reality star who won the country’s version of “Big Brother” — were arrested around 4 a.m. Thursday outside a Helsinki gay bar called DTM (Don’t Tell Mama). They were involved in a brawl that began in the club and spilled outside.