step-on

[step-on, -awn] /ˈstɛpˌɒn, -ˌɔn/
adjective
1.
made to open by the operation of a pedal, as a can for kitchen garbage.
Origin
adj. use of verb phrase step on
British Dictionary definitions for step on

step on

verb (intransitive, preposition)
1.
to place or press the foot on
2.
(informal) to behave harshly or contemptuously towards
3.
(slang) to adulterate drugs
4.
(informal) step on it, to go more quickly, hurry up