tr.v.  o·ver·whelmed, 
o·ver·whelm·ing, 
o·ver·whelms 1.  To surge over and submerge; engulf: waves overwhelming the rocky shoreline.
2. a.  To defeat completely and decisively: Our team overwhelmed the visitors by 40 points.
b.  To affect deeply in mind or emotion: Despair overwhelmed me.
 3.  To present with an excessive amount: They overwhelmed us with expensive gifts.
4.  To turn over; upset: The small craft was overwhelmed by the enormous waves.