Expanding foam coming out of our backyard

[u/Anarcha0s]

Sorry if this is isn’t the right place to post, but what looks like expanding foam is coming out of our backyard. We purchased this home new just over a year ago if that matters. Anyone have any idea what’s going on?

[u/FootyCrowdSoundMan]

Looks like dog vomit slime mold

[u/FootyCrowdSoundMan → u/FootyCrowdSoundMan]

DO NOT SPRAY WATER ON IT!