| Kiffer | grasshead pothead stoner weedhead |
| Kifferin | pothead |
| Kiffen | smoking dope |
| kiffen | blow bounce the goof balls burn the hay ganja grass hash |
| Ziffer | digit figure |
| Kaffer | kaffir jerk |
| Koffer | suitcase |
| Kiefer | pine pine tree pinewood jaw jowl |
| Riffel | ripple |
| kniffen | bend |
| Söffer | boozer |
| Gaffer | gaper gazer rubberneck gaffer |
| Kaffee | coffee cafe |
| Puffer | buffer |
| Eifer | zeal eagerness enthusiasm fervor ardor verve alacrity precipitancy rush |
| Kupfer | copper |
| Käfer | beetle |
| Käufer | buyer |
| Küfer | cooper |
| Kif | kif |