A throwaway achievement for shoving trap modules into Samantha's neck hole, worth only common boxes.
Stretching! is Carl's example of the kind of stupid achievement that made up the vast majority of his backlog during The Ceasefire. He earned it for shoving all those traps into Samantha's neck hole at the end of the previous floor. Like the similarly ridiculous Kombucha!, it paid out only in bronze and silver Adventurer Boxes rather than anything notable.
The same neck-hole incident produced the far more disturbing Unbirthing! achievement, which Carl believes he got for teleporting inside her.
Filler achievement illustrating the junk bulk of Carl's box backlog.