Male Guinea pig rumble strutting. Rumbling or rumble strutting is a sound that Guinea Pigs will make as part of their mating ritual. Purring: this can mean your Guinea pig is happy or angry, so you'll need to look at the context of the situation carefully. ... The chattering may also sound like a hissing noise.
Rumble strutting is known to be a mating dance, but can also be seen as an act of dominance. And it doesn't just happen between a male and female, but can happen with any paired piggie! Another body language to recognize is the raising of a piggie's head and front legs and fluffing out their fur.