4 letters
- calf11
- caul9
- clap11
- clef11
- clip11
- clop11
- club12
- clue9
- coup11
- cuff14
- cuif11
- cull10
- culm12
- cult9
- cups11
- curf11
- curl9
- cusp11
- flap11
- flic11
- flip11
- floc11
- flop11
- flub12
- flue9
- flus9
- flux16
- foul9
- fuci11
- fuck15
- fuel9
- fugu11
- full10
- furl9
- gulf11
- gulp11
- loup9
- luau7
- luce9
- luck13
- luff12
- lulu8
- lump12
- pelf11
- pfui11
- plug11
- plum12
- plus9
- pouf11
- puce11
- puck15
- puff14
- pula9
- pule9
- puli9
- pull10
- pulp12
- puls9
- purl9
- scup11
- sulu7
- ulus7
3 letters
- alp7
- cap9
- cel7
- cep9
- col7
- cop9
- cub10
- cud8
- cue7
- cum10
- cup10
- cur7
- cut7
- dup8
- ecu7
- elf7
- feu7
- fil7
- flu8
- fly9
- fop9
- fou7
- fub10
- fud8
- fug9
- fun8
- fur7
- gul7
- hup9
- lac7
- lap7
- leu5
- lip7
- lop7
- lug7
- lum8
- luv9
- lux12
- pac9
- pal7
- pec9
- pic9
- piu7
- ply9
- pol7
- pub10
- pud8
- pug9
- pul8
- pun8
- pup10
- pur7
- pus7
- put7
- sup7
- tup7
- ulu6
- ump10
- upo7
- ups7
- yup9