lead in (one's) pencil

lead in (one's) pencil

An increase, enhancement, or restoration of one's sexual ability or vigor. Following this six-step program will put lead in your pencil, guaranteed. The only real way to put lead in your pencil is to eat well, exercise regularly, and have self-confidence.
See also: lead, pencil
Farlex Dictionary of Idioms.

lead in your pencil

vigour or energy, especially sexual energy in a man. informal
1972 Dan Lees Zodiac The couscous is supposed to put lead in your pencil but with Daria I needed neither a talking point nor an aphrodisiac.
See also: lead, pencil
Farlex Partner Idioms Dictionary
See also:
  • lead in your pencil
  • put lead in (one's) pencil
  • put lead in one's pencil
  • put lead in your pencil
  • have lead in (one's) pencil
  • have lead in one’s pencil
  • pencil
  • pencil in
  • pencil me in
  • in pencil