2) (Noun- A shot of an illegal drug into the arm causing loss of memory or overall loss of pain endured in Advance Placement Calculus.
3) (Noun- A bullet shot to anyplace in the body to completely relieve any and all pain in suffering in Advance Placement Calculus, also one's life.
2) Brenda had a panic attack from the vast amount of integrals she needed to study so she injected a calcushot into her forearm, relieving all pain.
3) Brenda could no longer take calculus class. She took a calcushot the head, RIP Brenda.