A common typo that occurs when someone is so excited about engaging in 'sneaky' activities, that when trying to explain their devious behaviours, their finger slips when attempting to hit the K button and press the L button instead, which is located directly beside it on a standard qwerty keyboard.
Jamie: 'Kristi, how did you manage to smoke an entire bowl of crack in front of the police station without getting caught??'
Kristi: 'It was simple! I pretended that I was having an asthma attack and disguised my crack pipe to make it look like an inhaler. I'm so snealy!'