Once I got "poop" i went ham and made a bunch of discoveries

Poop truck, space poop truck, poop train, poop martini, fartdiana jones, fartman, poopacat

And my favorite:

poopacabra (from chupacabra)

Also got some interesting failure modes:

Got "Fartacus Jones + Fire Poop Train", "" (galaxy emoji) and "???" (galaxy emoji) all of which refuse to combine with anything else.

EDIT: Got chicken titty, nuclear porn, and pooporn