しこしこ

• (Tokyo) しこしこ [shíꜜkòshìkò] (Atamadaka – [1])^[1]
• IPA^(key): [ɕiko̞ɕiko̞]

しこしこ • (shikoshiko) 

1. Continuing to make calm and steady efforts in things one is interested in.

   一晩中(ひとばんじゅう)しこしこと実験(じっけん)を続(つづ)ける。

   Hitobanjū shikoshiko tojikken o tsuzukeru.

   The experiment continued steadily throughout the night.

2. Having a springy texture; Chewy.

   そばのしこしこした食感(しょくかん)が、口(くち)の中(なか)で心地(ここち)よく広(ひろ)がります。

   Soba no shikoshikoshita shokukan ga, kuchi no naka de kokochi yoku hirogarimasu.

   The chewy texture of the soba spreads pleasantly in your mouth.

しこしこ or シコシコ • (shikoshiko) 

1. (slang) masturbation; jerking off