Enlargement
Expansion, Extension
noun, verbal noun
かくちょう
拡大 (かくだい) Zoom, Magnification, Enlargement, Expansion
拡張 (かくちょう) Enlargement, Expansion, Extension
膨張 (ぼうちょう) Expansion, Swelling, Increase, Growth
Show your cock かく to Mrs. Chou ちょう and she'll carry out an Enlargement procedure.