What does 'Like white on rice' mean?

If you do something like white on rice, you do it very closely: When Bob found out I had front row tickets for the concert, he stuck to me like white on rice.

• Category: Colours
• This idiom is American English

Idioms similar to 'Like white on rice'

• White lie
• White feather
• White as a sheet
• Black and white
• White as a ghost
• Great white hope