Chuffle

1. A short huff of laughter breathed out of one’s nose, often in response to puns or morbid humor.

2. (of the big cat species) to make a low snuffling sound similar to the purring of smaller cat species, often as a greeting.

1. John: I saw an ad for burial plots, but that’s the last thing I need.
Jen: *chuffles*
2. The tiger chuffled when his favorite zookeeper approached.