turn the heat up

turn the heat up (on someone)

Fig. to use force to persuade someone to do something; to increase the pressure on someone to do something. Management is turning the heat up to increase production. The teacher really turned up the heat on the students by saying that everyone would be punished if the real culprit was not found.
See also: heat, turn, up
References in periodicals archive ?
At that point, beginners turn the heat up, which just distorts or discolors the sheet," one former explains.