| Although these are SP specific, other RR's may have used them. |
| Diesels |
| Nickname | Item |
| Alligators | ALCo RSD15 has a long low-nose. |
| Alcohaulic | ALCo C-643 aka C-643DH aka DH643. |
| Baby Boats | GE B23-7 evidently more usually applied to B30-7's, I've seen it applied to U18B's on the East Coast. |
| Baby Huey | GE U50 from the cartoon character of the same name. |
| Buffalo | ALCo C-630 from the side profile. |
| Cadillacs | SD9's but not SD7's. |
| Covered Wagons | generally applied to any F Unit. |
| Cruds | SW1500 diesel switchers, also seen Curds, but I suspect a typo. |
| Flares | EMD SD45's aka Flared aka Flare 45. |
| Huff & Puff | EMD SD9E's 4450 and 4451 that retained their steam generators for backup passenger service when rebuilt to SD9E's. |
| John Deere's | ALCo RSD5 |
| Krauts | Krauss Maffei ML4000 hydraulic locomotives, from being manufactured in Germany. |
| Mates | TEBU's Seaboard call their road slugs Mates. |
| Orange Bird | aka Red Bird aka Yellow Bird the second hood unit painted in Daylight colors (after SSW GP7) went through numerous repaints, but was originally more orange than red. |
| Popsicles | TE70-4S re-engined U25B's with Sulzer engines. Were painted in a variation of the Daylight scheme, but more pastel in shade. |
| Queen Mary | EMD E2A SP's oldest diesel loco. |
| Snails | the F7B units that were rebuilt to power the Rotary Snowplows. |
| Sport Model | GP40P-2 Passenger units steam gen. equipped GP40P-2's with a longer frame to allow for the steam gen. short fuel/water tanks, and flared rear radiators ala SD45's. Presumably nicknamed because they were smaller, and hence "sportier" than the SDP45s also used on the Peninsula commutes. |
| Torpedo Boats | GP9 Passenger units steam gen. equipped non-dynamic GP9's with extra large fuel/water tanks, that forced the air reservoirs onto the roof, looked like torpedo tubes. |