Switzerland· hard· informal
être sur Soleure
“to be on Soleure (a Swiss city)”
Meaning
to be drunk
Explanation
This Swiss expression means to be tipsy or drunk, the full form is 'être chargé pour Soleure.'
Example
Après trois verres de fendant, il était déjà sur Soleure.
After three glasses of Fendant, he was already tipsy.
Origin
In the 16th century, boatmen transported barrels of wine from Le Landeron via Lake Neuchâtel and the River Aar to the city of Soleure. The journey was long enough that the crew would sample the cargo, arriving at their destination well and truly drunk.
Where
Suisse romande
Source