pesado  - bore, pest 

pesadez  - heaviness, slowness, tediousness 

lo aburrido

calibre  - caliber, gauge, importance, excellence, kind, sort 

taladrar  - to drill 

perforar  - to perforate, to pierce, to drill, to bore 

hacer  - to act, to make, to do, to perform, to force, to oblige 

abrir  - to open, to open, to open up, to unlock, to undo, to turn on (a tap or faucet) 

aburrir  - to bore, to tire