Lindsay Lohan will be a busy girl when she leaves rehab: She has an interview with Oprah, a high-paying docu-series on tap, and a career to revitalize.

That doesn't leave a lot of time for socializing -- but it's probably for the best since she may be dumping the vast majority of her friends anyway.

Sources spying on the actress for TMZ claim LiLo, inspired by a therapy session called "toxic friends and influences," recently sat down and separated 100 friends into two lists. On one she noted the good friends she'll keep, and on the other, the toxic pals she plans to toss.

All in all, only 20 people landed on the "keep" list.

In the immortal words of Lindsay Lohan's 'Mean Girls' character, "When you get bit by a snake you're supposed to suck the poison out. That's what I had to do. Suck all the poison out of my life."