Caption: An artist's conception of an astronaut falling into a black hole and undergoing spaghettification.

Really, they are NOT stretched, they are ripped apart by the super tidal force that occurs near a black hole either OUTSIDE or INSIDE the event horizon.

The ripping apart is humorously referred to as spaghettification---as once said Gomez Addams "either way, what a pleasure".

Actual ripping apart of astronomical objects (e.g., stars) are called tidal disruption events (TDEs).

Credit/Permission: Laura A. Whitlock, Kara C. Granger, Jane D. Mahon, NASA, 1998 (uploaded to Wikipedia by User:HaeB, 2020) / Public domain.
Image link: Wikimedia Commons: File:Spaghettification (from NASA's Imagine the Universe!).png.
Local file: local link: black_hole_tidal_force_ripping.html.
File: Black hole file: black_hole_tidal_force_ripping.html.