たたみ
畳
　
の
うえ
上
　
の
すい
水
れん
練

noun

Idiomatic expression, jocular, humorous term.
  1. useless book learning, knowing the theory but being unable to put it into practice, practicing swimming on a tatami mat.

Variations

Pronunciation Kanji Kana Is Common
たたみ
畳
　
の
うえ
上
　
の
すい
水
れん
練
 畳の上の水練 たたみのうえのすいれん

Contained Kanji Breakdown

tatami mat, counter for tatami mats, fold
たた.む　たたみ　ジョウ (Early Jr. High, N2)
rice field, rice paddy
た　デン　たん (1st, N4)
suitable, right, fitting
ギ　よろ.しい
wa-shaped crown radical (no. 14)
ベキ (Kentei 1)
moreover, also, furthermore
か.つ　ショ　ソ (Early High School, N1)
month, moon
つき　ゲツ　ガツ (1st, N5)
one, one radical (no.1)
イチ　いっ　ひと- (1st, N5)
above, up
ジョウ　うえ　あ.げる (1st, N5)
divining, fortune-telling, divination or katakana to radical (no. 25)
ボク　うらな.う　うらない (Kentei Pre-1)
one, one radical (no.1)
イチ　いっ　ひと- (1st, N5)
water
みず　スイ　み (1st, N5)
practice, gloss, train
レン　ね.る　ねり (3rd, N2)
thread
いと　シ (1st, N2)
short thread radical (no. 52)
ヨウ　ちいさい (Kentei 1)
little, small
ショウ　こ-　ちい.さい (1st, N5)
feathered stick, barb radical (no. 6)
ケツ　かぎ (Kentei 1)
eight, eight radical (no. 12)
ハチ　や　はっ (1st, N5)
east
トウ　ひがし　しの (2nd, N5)
tree, wood
き　モク　こ- (1st, N5)
day, sun, Japan
ひ　にっ　ニチ (1st, N5)