44158
I wanted to say something like "No matter where I go the bathrooms are always
all full. Do I use any of these:"満席?いっぱい?全使用中？空いていない？

In which case saying the bathroom is "full" is one way to say it, but how
would I also say it conversely with the bathrooms are unavailable (because
they are full)
CC BY-SA 3.0
2017-03-07T04:48:44.307
44157
2017-03-07T05:15:53.497
10300
question
word-choice
how do I refer to bathrooms that are completely full / unavailable?
I would say...

あそこのトイレ、いっつも **いっぱい** で[入]{はい}れない。  
昼休みはトイレ **混んで** て入れない。  
トイレ(の個室)、 **全部使用中** 。  
女子トイレ、一つも **空いてない** 。  
女子トイレが **[満室]{まんしつ}** だったから、男子トイレに入った。
CC BY-SA 3.0
2017-03-07T05:15:53.497
44158
2017-03-07T05:15:53.497
9831
44157
answer