A Shit Burp is:

A. To pass wind
B. When a fart smells so bad that one might has well have shat.
C. The smell of a shit in fart form.
D. a shit burp smells as though the shit in you ass opened up its mouth and burped.

The safeguarding of Earth and other worlds from biological cross-contamination (i.e. billionaires with too much time on their hands).

Also known as “planetary protection.” Planetary protection / quarantine “reflects both the unknown nature of the space environment and the desire of the scientific community to preserve the pristine nature of celestial bodies until they can be studied in detail.”

There are two types of interplanetary contamination. Forward contamination is the transfer of viable organisms from Earth to another celestial body. Back contamination is the transfer of extraterrestrial organisms, if such exist, back to the Earth's biosphere.

a burp that smells like a fart