just put some similar jobs in your work experience to the field your applying but make it as vague as possible
Interviewer: Would you mind explaining this employment gap?
Interviewee: Yes of course, during that time I was involved in an extensive research I conducted myself relating to the human brain and how p*** has long term effects on your mind.
just make up a fake job for that time period
my resume full of s*** I've never done in my life
lol exactly, just put down phonenumbers of your friends as referrals