To masturbate while still on the toilet after having taken a shit.

In Swedish horror flicks women are known to straddle a man in order to have sex with him while he is on the toilet taking a dump and so the phrase "taking a Swedish" refers to a masturbatory #2 session.
"I just got through taking a Swedish."

"I took forever in the bathroom because I took a Swedish."

"Were you in the bathroom taking a Swedish because you were gone forever?"
by Lulz§wag December 31, 2021
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