light a bulb
v. phr.— «Lame Deer District Councilman Jace Killsback said drug users have “no shame” and will smoke meth in public. Using the slang of his 20-something generation, Killsback said they “light a bulb in their car downtown.”» —“Meth Drives A Stake In Indian Country” Odread Daily May 16, 2006. (source: Double-Tongued Dictionary)