to do what one normally does. as in a trout just swimming up the stream.

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.

Troutin' around refers to a state of just relaxing and hanging out... perhaps some mild puttering, as a trout in a the hatchery.

When some STANKY-ASS bitch thinks shes all that! but her pussy be smellin like an ol ass troat!