Is The Grimace Shake Back 2024 Dates. While canadian grimace celebrates his birthday in may, last year the american version celebrated his birthday with the shake beginning june 12. However, the cult drink will be available for.

Available from friday, october 4 for a limited time only, the grimace shake can be ordered separately or as part of a medium or large grimace meal with the choice of a big mac or. But given the buzz around this promotional drink, there is a chance that the chain will.