gi slang for a women 's period aka-chan - child , baby asahi - a japanese beer arigato - thank you arigato goziemashita - feminine thank you benjo - toilet bento - box lunch biru - beer butterfly - person who goes from lover to lover c/c & kori mizu - canadian club whiskey and ice water cha or ocha - green tea chan - added after a person 's given name to denote affection .