1 definition by Achilles De Flandre

To retain a thought-process in accordance with one’s own personal agenda; to not give a flying fuck about anyone else. This usually comes with an air of arrogance, and (sometimes) slight douchebaggery .
Example one:
Matt: That kid is a prick

Derek: He got that icicle mentality.

Example two:

Alex: you seem unfazed by their insults, but how?
Brett: it’s icicle mentality.
by Achilles De Flandre May 24, 2018
Get the icicle mentality mug.