Blow up

blow upfunction: verb date: 1536transitive verb 1 : to build up or tout to an unreasonable extent lt;advertisers blowing up their productsgt;2 : to rend apart, shatter, or destroy by explosion3 : to fill up with a gas (as air) lt;blow up a balloongt;4 : to make a photographic enlargement of5 : to bring into existence by blowing of wind lt;it may blow up a stormgt;intransitive verb 1 a : explode b : to be disrupted or destroyed (as by explosion) c : to lose self-control; especially : to become violently angry2 : to become or come into being by or as if by blowing of wind3 a : to become filled with a gas b : to become expanded to unreasonable proportions