What does "My Hard Limits Are" Mean?

[daddyplaytime]

What does, "My Hard Limits Are" mean??

Sorry, I couldn't find any info on this. At first, I thought it was what pissed them off, but maybe not?

 

[susurrus]

Hard limits, particularly in a BDSM setting, are those things a submissive absolutely will NOT do, no matter what.

 

[Plane_Guy]

The top of my cock?