What is the meaning of Blowout?

A sudden puncturing of a pneumatic tyre/tire.

A sudden release of oil and gas from a well.

A social function, especially one with large quantities of food.

A large or extravagant meal.

A contest that is decidedly one-sided; an overwhelming victory.

An argument; an altercation.

A sandy depression in a sand dune ecosystem caused by the removal of sediments by wind.

An extreme and unexpected increase in costs, such as in government estimates for a project.

The cleaning of the flues of a boiler from scale, etc., by a blast of steam.

An unsightly flap of skin caused by an ear piercing that is too large.

An instance of having one's hair blow-dried and styled.

The blurring of a tattoo due to ink penetrating too far into the skin and dispersing.

The damage done to the exit side of a drilled hole or sawn edge when no sacrificial backerboard is used during the drilling or sawing: the drill bit's or sawblade's exit on the far side causes chips of wood to be broken from the edge.

Source: wiktionary.org