Jimmy Kimmel’s back to fake lie detecting. On Tuesday’s episode of “Jimmy Kimmel Live,” Kimmel hooked up six-year-old Brooklynite Marlon to a phony “polygraph machine” (i.e. a metal bowl) in an effort to discover the truth. The truth, it appears, is that Marlon has a penchant for older women and cursing like a sailor. Watch full episodes of “Jimmy Kimmel Live” on XfinityTV.com.