The term 'It's F-F-Freezing!' can be represented by two crossword solutions, BRRR and BRR. BRRR is a four letter word that is an onomatopoeia for the sound of shivering or teeth chattering due to cold temperatures. BRR is a three letter word that is an onomatopoeia for the sound of shivering or teeth chattering due to cold temperatures. Both words are used to express the feeling of being very cold.