One fan's overreaction: "I never thought that anyone who would pay for subscription to this board would be fair weather fans...So for those of you who are not willing to support your team when they need you the most...all I can say is ...Please do not tell anyone you are real fans...and you can all go straight to HELL."
To exaggerate, overemphasize, overstate. An idiom. The 'over' is added unnecessarily and its usage is virtually always synonymous with a mere 'exaggerate', rather than a different word, as 'exaggerate' is not a neutral usage verb like the word 'do'. There is no threshold for the word 'exaggerate', so it is not possible to overdo. To 'overexaggerate' is to 'overoverstate'.