Shotgrub

 is a gun that fires a spread of 5 bullets that leave small pools of poison goop on impact.

Trivia

 * "No Worries" is a reference to the song Hakuna Matata, which is sung by Timon and Pumba from the movie The Lion King, who are notorious for eating grubs.
 * Shotgrub is very similar to Slim's Leech gun from Evolve, which is fed grubs and has the same projectile colour.