▁minimum ▁buy - in ▁may ▁not ▁then ▁add ▁to ▁their ▁st ake ▁or ▁borrow ▁money ▁during ▁any ▁future ▁hand ▁until ▁they ▁re - bu y ▁an ▁amount ▁sufficient ▁to ▁bring ▁their ▁st ake ▁up ▁to ▁a ▁full ▁buy - in . ▁ ▁If ▁a ▁player ▁cannot ▁or ▁does ▁not ▁wish ▁to ▁go ▁all - in , ▁they ▁may ▁instead ▁choose ▁to ▁buy ▁ch ips ▁with ▁c ash ▁out - of - po cket ▁at ▁any ▁time , ▁even ▁during ▁the ▁play ▁of ▁a ▁hand , ▁and ▁their ▁bet s ▁are ▁limited ▁only ▁by ▁the ▁specified ▁bet ting ▁structure ▁of ▁the ▁game . ▁ ▁Finally , ▁a ▁player ▁may ▁also ▁borrow ▁money ▁by ▁bet ting ▁with ▁an ▁IO U , ▁called ▁a ▁" marker ", ▁pay able ▁to ▁the ▁winner ▁of ▁the ▁pot . ▁ ▁To ▁bet ▁with ▁a ▁marker , ▁all ▁players ▁still ▁active ▁in ▁the ▁pot ▁must ▁agree ▁to ▁accept ▁the ▁marker . ▁Some ▁clubs ▁and ▁house ▁rules ▁forb id ▁IO Us ▁altogether . ▁If ▁the ▁marker ▁is ▁not ▁acceptable , ▁the ▁bet tor ▁may ▁bet ▁with ▁c ash ▁out - of - po cket ▁or ▁go ▁all - in . ▁A ▁player ▁may ▁also ▁borrow ▁money ▁from ▁a ▁player ▁not ▁involved ▁in ▁the ▁pot , ▁giving ▁them ▁a ▁personal ▁marker ▁in ▁exchange ▁for ▁c ash ▁or ▁ch ips , ▁which ▁the ▁players ▁in ▁the ▁pot ▁are ▁then ▁comp elled ▁to ▁accept . ▁A ▁player ▁may ▁borrow ▁money ▁to ▁call ▁a ▁bet ▁during ▁a ▁hand , ▁and ▁later ▁in ▁the ▁same ▁hand