A expression used in place of "going to the bathroom", for the express purpose of deficating. It means to "take a shit".

Refer to: lighten the load

Although 'head' is often used as a reference to 'toilet', this is not the case in this expression.
Mike: Are we ready to go?
Dave: Nah, Andrew's just gone to clear the head.
Mike: Christ, he'll be gone a while - we may as well have another beer!
by buckonz September 09, 2008
5 Words related to clear the head

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