徹マン

Reading

Kana: てつマン

Romaji: tetsuman

Definition

noun

vs

1

playing mahjong all night

Note: slang; abbreviation

See also: 徹夜 (reading てつや) マージャン

Kanji

徹

Reading: テツ

Meanings: penetrate, clear, pierce, strike home, sit up (all night)