私の父はビリヤードの玉のように頭がつるつるだ。

I; me; private affairs; personal matter; secrecy; selfishness

indicates possessive; nominalizes verbs and adjectives; substitutes for "ga" in subordinate phrases; (at sentence-end, falling tone) indicates a confident conclusion; (at sentence-end) indicates emotional emphasis; (at sentence-end, rising tone) indicates question

father

topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis

billiards

ball; sphere; globe; orb; bead (of sweat, dew, etc.); drop; droplet; ball (in sports); pile (of noodles, etc.); bullet; bulb (i.e. a light bulb); lens (of glasses, etc.); bead (of an abacus); ball (i.e. a testicle); gem; jewel (esp. spherical; sometimes used figuratively); pearl; female entertainer (e.g. a geisha); person (when commenting on their nature); character; item, funds or person used as part of a plot; egg; coin; precious; beautiful; excellent

in order to (e.g. meet goal); so that; take care (so as); hoping or wishing for something

head; hair (on one's head); mind; brains; intellect; leader; chief; boss; captain; top; tip; beginning; start; head; person; top structural component of a kanji

indicates sentence subject (occasionally object); indicates possessive (esp. in literary expressions); but; however; still; and

slick; slippery; smooth; sleek; slurping (noodles)

be; is; indicates past or completed action; indicates light imperative