crevice, let/blow off steam

A suit jacket can supposedly be crushed into the crevice of an airline seat for a long flight, only to shed its wrinkles at the end.

Play Games With Your Resume: Use games to hone marketable skills while blowing off some steam.

let/blow off steam
to do or say something that helps you to get rid of strong feelings or energy:
He lifts weights after work to let off steam.

crevice
noun [C]
1 a small narrow crack or space, especially in the surface of rock

2 a deep line in an old person's face, or a deep fold in someone's body:
The harsh light revealed every crevice and wrinkle in his face.
Sweat poured out of every crevice of the fat man's body.