wall of sand, anything frail and decaying

love/ friendship of a selfish can not be everlasting or strong

causal or passing acquaintance

a selfish person

mean, ignoble, narrow-minded, vulgar, low

a cat who comes and appears while eating food, (figuratively) uninvited guest, sponge

nonsense talk

claim to be a friend, claim friendship

pendant resembling a fish

to vomit with a loud noise

a clever person always escapes from misfortune or trouble

expression used to say that a fool has said something very wise by chance

vomiting

remark made when someone is blamed for another's mistake or someone's responsibility is foisted on another

Sand

a wise man suffers while fools are carefree

friendship, close relationship, attachment

be highly secretive

take another's responsibility, invite other's troubles