Top Definition
Dutch expression from the youth to express that you have to think about something, mostly creative, before you can provide an answer. The dutch word "klei" means clay, which is a matter often used in creative classes, like art class ( clay modeling)

The expression evolved to taking a dump, because it was considered funny to suggest having a brainstorm session, while sitting on the toilet doing number two.
If someone asks you which color he/she should paint her wall in order for it to fit the other colors in the room, and you don't know the answer right away you can ' klei' about it. ( dutch: laten we erover kleien')

If you want to express you're going to the toilet, to take a dump, you could say ' I'm going to model some clay for a moment' ( dutch: ik ga even kleien)
by TonesVadeli November 10, 2009

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