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3.
reason.
Your howcome for coming to school late is not satisfactory.
by uttam maharjan August 06, 2010
 
1.
Why, request for proferring preferred explanation
How come it's like that?
by Hercolena Oliver April 17, 2009
 
2.
Another phrased coined by David Alan Weinshel (Wheeler 02' BU 06'). Simplifies the stress of saying how and come separately. Also eliminates the need to hit hte spacebar when typing.
Dave: yo, u hungry?
Todd: no, u?
Dave: howcome?
by Steven Muntner *see RAT-MAN February 28, 2005