What do we mean by squeezing onto a solid food, stirring tea with pieces of lemon inside, cutting lemons.
Leaning on an Animal. Bottom Line on Using a Hammock or Swing Attached to a Tree. Sitting on an Animal;
review on all the various different issues in conjunction with opening up a tissue box on Shabbos;
more examples of "מבטל כלי מהיכנו" (nullifying a vessel from its normal usage) that come up on Shabbos;