grab a seat

:  to take or seize by or as if by a sudden motion or grasp

:  to obtain without consideration of what is right or wrong

:  to take hastily

:  intended to be taken, seized, or grasped suddenly

:  taken at random

:  something taken, seized, or grasped suddenly

:  a sudden snatch

:  an unlawful or unethical seizure

:  a special chair of one in eminence

:  the status represented by it

:  a chair, stool, or bench intended to be sat in or on

:  to install in a seat of dignity or office

:  to cause to sit or assist in finding a seat

:  to provide seats for